The royals, who are first and second in line to the throne, declined to take part in the trip and left the Queen to meet the US President alone, it is claimed.
Instead, the Prince of Wales, 69, attended a board meeting at Highgrove and an event with Gloucestershire Police while the Duke of Cambridge, 36, played in a charity polo match.
“This business of Prince Charles and Prince William not being there for the Trump visit was a snub,” an insider told the Sunday Times.
“They simply refused to attend. It’s a very, very unusual thing for the Queen to be there on her own.”
It was claimed the princes made their reluctance clear during informal discussions about the arrangements for the trip.
Prince Charles has often accompanied the Queen following the retirement of Prince Philip, 97, from royal duties in August last year.
Buckingham Palace said that it had always been planned for the Queen to greet Mr Trump and his wife Melania alone because it was not a state visit.
"It was entirely in line with standard practice for guest of government visits The Queen to receive the President and First Lady," said a palace spokesperson.
The Queen was left to welcome President Trump and first lady Melania alone while senior royals attended other engagements (AFP/Getty Images)
"The arrangements were mutually agreed between the Palace and the UK and US governments. There was never a suggestion that other members of the royal family would take part."
The palace said that similar arrangements were made for the Turkish president's visit in May.
Mr Trump described his meeting with the Queen as "really something special" in an interview with Piers Morgan on Good Morning Britain.
He said: "She is an incredible woman, she is so sharp, she is so beautiful, when I say beautiful - inside and out. I can tell you I liked her. I liked her a lot.”
The US president also said he liked the whole royal family, adding: "I think the whole family have good energy."
Donald Trump UK visit: in pictures
Donald Trump UK visit: in pictures
1/100
Britain's Prime Minister Theresa May and US President Donald Trump walk to a joint news conference holding hands
Reuters
2/100
People march holding anti-Trump signs in Edinburgh while the US. President is visiting Trump Turnberry Luxury Collection Resort in Scotland
Getty
3/100
President Donald Trump and first lady Melania Trump depart from Glasgow Prestwick Airport
REUTERS
4/100
Trump on the back
Getty
5/100
President Donald Trump waves whilst playing a round of golf at Trump Turnberry Luxury Collection Resort
Getty Images
6/100
Donut TrumpScotland United Against Trump demonstrators gather at the Scottish Parliament in Edinburgh
PA
7/100
Donald Trump plays a round of golf at Trump Turnberry
Getty Images
8/100
People march holding anti-Trump signs
Getty
9/100
PA
10/100
Trump waves form golf course
Getty
11/100
Getty Images
12/100
Trump goes for a stroll
Getty
13/100
Trump blimpA giant balloon depicting US President Donald Trump as an orange baby is launched as protesters gather in the Meadows, after taking part in the Scotland United Against Trump march through the streets of Edinburgh
AFP/Getty
14/100
U.S. President Donald Trump drives his golf buggy
REUTERS
15/100
A Greenpeace protester flying a microlight passes over Donald Trump's resort in Turnberry
PA
16/100
President Donald Trump and first lady Melania Trump look at the media during their arrival on Air Force One at Glasgow Prestwick Airport in Scotland
AP
17/100
Scotland United Against Trump demonstrators gather at the Scottish Parliament in Edinburgh
PA
18/100
Security and police teams surround the perimeter of Trmup's golf course
Getty
19/100
Scotland United Against Trump demonstrators
PA
20/100
Teams of police officers patrol the beach outside near Trump Turnberry Luxury Collection Resort
Getty
21/100
Pro-Trump supporters demonstrate outside the US Embassy in support of President Donald Trump's visit to the UK, in London
EPA
22/100
Scottish Labour leader, Richard Leonard speaks to crowd
PA
23/100
Ex-pat
AFP/Getty
24/100
Demonstrators hold placards near the golf resort owned by US President
REUTERS
25/100
Protesters wear orange face makeup
Getty
26/100
Pro-Trump supporters demonstrate outside the US Embassy in London
EPA
27/100
Trump protestors on the beach near to the Trump Turnberry resort
PA
28/100
Protestors against the UK visit of US President Donald Trump near Aberdeen
AFP/Getty
29/100
A mounted police officer patrols anti-Trump rally
Getty
30/100
Trump supporter Bill McGibbon outside his cottage near to the Trump Turnberry resort in South Ayrshire
PA
31/100
AFP/Getty Images
32/100
Queen Elizabeth II and President Donald Trump inspect an honour guard at Windsor Castle
Getty Images
33/100
PA
34/100
Queen Elizabeth II stands with US President Donald Trump and his wife, Melania, during their visit to Windsor Castle
PA
35/100
Donald Trump walks ahead of Queen Elizabeth
AP
36/100
Getty Images
37/100
Donald and Melania Trump listen to the Coldstream Guards, play the US national anthem next to the Queen
REUTERS
38/100
Protesters in Windor
Getty Images
39/100
US President Donald Trump and first lady Melanie Trump are greeted by Queen Elizabeth II, during an arrival ceremony with the Guard of Honour at Windsor
AP
40/100
Queen Elizabeth II waits to greet US President Donald Trump as he arrives by helicopter
AFP/Getty
41/100
Ed Miliband joins the march
Angela Christofilou
42/100
PM and President
Getty
43/100
Protestors hold banners
AP
44/100
UK meets US
AFP/Getty
45/100
Protests at Trump visit
Angela Christofilou
46/100
Trump and May
Getty
47/100
Protests at Trump visit
Will Gore
48/100
Protesters for the 'Stop Trump' Women's March gather in London
AP
49/100
US President Donald Trump and Britain's Prime Minister Theresa May hold a joint press conference
AFP/Getty
50/100
Donald Trump and Theresa May attend a press conference
AFP/Getty
51/100
Demonstrators protest against the visit of U.S. President Donald Trump
REUTERS
52/100
Prime Minister Theresa May walks with US President Donald Trump at Chequers
Getty
53/100
Donald Trump UK protest
Angela Christofilou
54/100
First Lady, Melania Trump, tries her hand at bowls
Getty
55/100
US President and British Prime Minister at Chequers
Reuters
56/100
Demonstrator in Black Lives matter T-shirt
Angela Christofilou
57/100
Theresa May and Donald Trump enter Chequers
REUTERS
58/100
Protestors wearing Donald Trump and Theresa May paper mache heads join the protest in Butler's Cross
PA
59/100
First Lady, Melania Trump, looks on as Philip May tries bowls
Getty Images
60/100
American Psycho poster
Angela Christofilou
61/100
First Lady, Melania Trump, reacts as she tries her hand at bowls
Getty
62/100
Donald Trump protest in London
Angela Christofilou
63/100
Theresa May, Donald Trump with US ambassador to the United Kingdom Woody Johnson and British Foreign Secretary Jeremy Hunt at the start of the bilateral meeting at Chequers
EPA
64/100
Melania Trump and Philip May wave flags
REUTERS
65/100
Donald Trump is greeted by Theresa May
AP
66/100
The US First Lady Melania Trump, helps children to make poppies
PA
67/100
The handshake between Donald Trump and Theresa May
AP
68/100
Demonstrators raise a six meter high effigy of Donald Trump
Getty
69/100
Donald Trump stands alongside Theresa May after he arrived for talks at Chequers, her country residence in Buckinghamshire
PA
70/100
A six-meter high cartoon baby blimp of Donald Trump hovers next to the statue of former Prime Minister Winston Churchill
AP
71/100
First Lady, Melania Trump, accompanied by Philip May, meets schoolchildren and British Army veterans
Getty
72/100
A lookalike of former British Foreign Minister Boris Johnson stands next to a person in a cage wearing a money suit and a mask of Donald Trump
AP
73/100
Donald Trump gestures as he prepares to board Marine One to depart the US ambassador's residence Winfield House
AFP/Getty
74/100
Demonstrators stand in front of a blimp portraying US. President Donald Trump, in Parliament Square
REUTERS
75/100
The Prime Minister hosts President Trump and First Lady Melania at a black tie dinner with business leaders at Blenheim Palace
AFP/Getty
76/100
The Prime Minister, accompanied by husband Philip, arrive with President Trump and First Lady Melania to a black tie dinner with business leaders at Blenheim Palace
AP
77/100
The Prime Minister and President Trump are seen holding hands, not for the first time
EPA
78/100
President Donald Trump pumps his fist during his arrival, with first lady Melania Trump, in Regent's Park
AP
79/100
Demonstrators bang pots and pans as they gather at the US ambassador residence in Regent's Park
PA
80/100
US President Donald Trump and US First Lady Melania Trump walk in the grounds of the US ambassador's residence Winfield House
AFP/Getty
81/100
A demonstrator protests next to the specially erected fence surrounding the US ambassador's residence
REUTERS
82/100
A motorcade arrives at Winfield House in London, the residence of American Ambassador to the to the Court of St James's
PA
83/100
A presidential helicopter lands in the grounds of the US ambassador residence in Regent's Park
PA
84/100
Protesters chant and wave placards during a demonstration outside Winfield House
Getty
85/100
he Marine One helicopter carrying US President Donald Trump and First Lady Melania Trump flies past the BT Tower
Getty
86/100
Protesters chant and wave placards during a demonstration outside Winfield House
Getty
87/100
US President Donald Trump and First Lady Melania Trump disembark from Air Force One after arriving in the UK
Reuters
88/100
US First Lady Melania Trump and US President Donald Trump are greeted by US Ambassador to the United Kingdom Woody Johnson
AFP
89/100
US President Trump and Melania Trump leaving Stansted Airport
PA
90/100
An honour guard stands to receive US President Donald Trump and US First Lady Melania Trump
AFP/Getty
91/100
Donald and Melania
Getty
92/100
US President Donald Trump and First Lady Melania Trump greet Secretary of State for International Trade Liam Fox on their arrival
Getty
93/100
US Marine Corps Osprey aircraft taking off
PA
94/100
Us President Donald Trump and First Lady Melania Trump disembark from Air Force One
AP
95/100
US President Trump and Melania Trump arrive at Stansted
PA
96/100
A giant 'Human Rights Nightmare' banner is unfurled by Amnesty International activists across the river Thames on Vauxhall Bridge to protest against the visit of US President Donald Trump
AP
97/100
US President Donald Trump waves as he arrives in the UK
PA
98/100
An armed police officier waits on the tarmac at Stansted Airport
AFP/Getty
99/100
US President Donald Trump and Melania Trump arrive at Stansted Airport
PA
100/100
Armed police await the arrival of US President Donald Trump at Stansted Airport
REUTERS
1/100
Britain's Prime Minister Theresa May and US President Donald Trump walk to a joint news conference holding hands
Reuters
2/100
People march holding anti-Trump signs in Edinburgh while the US. President is visiting Trump Turnberry Luxury Collection Resort in Scotland
Getty
3/100
President Donald Trump and first lady Melania Trump depart from Glasgow Prestwick Airport
REUTERS
4/100
Trump on the back
Getty
5/100
President Donald Trump waves whilst playing a round of golf at Trump Turnberry Luxury Collection Resort
Getty Images
6/100
Donut TrumpScotland United Against Trump demonstrators gather at the Scottish Parliament in Edinburgh
PA
7/100
Donald Trump plays a round of golf at Trump Turnberry
Getty Images
8/100
People march holding anti-Trump signs
Getty
9/100
PA
10/100
Trump waves form golf course
Getty
11/100
Getty Images
12/100
Trump goes for a stroll
Getty
13/100
Trump blimpA giant balloon depicting US President Donald Trump as an orange baby is launched as protesters gather in the Meadows, after taking part in the Scotland United Against Trump march through the streets of Edinburgh
AFP/Getty
14/100
U.S. President Donald Trump drives his golf buggy
REUTERS
15/100
A Greenpeace protester flying a microlight passes over Donald Trump's resort in Turnberry
PA
16/100
President Donald Trump and first lady Melania Trump look at the media during their arrival on Air Force One at Glasgow Prestwick Airport in Scotland
AP
17/100
Scotland United Against Trump demonstrators gather at the Scottish Parliament in Edinburgh
PA
18/100
Security and police teams surround the perimeter of Trmup's golf course
Getty
19/100
Scotland United Against Trump demonstrators
PA
20/100
Teams of police officers patrol the beach outside near Trump Turnberry Luxury Collection Resort
Getty
21/100
Pro-Trump supporters demonstrate outside the US Embassy in support of President Donald Trump's visit to the UK, in London
EPA
22/100
Scottish Labour leader, Richard Leonard speaks to crowd
PA
23/100
Ex-pat
AFP/Getty
24/100
Demonstrators hold placards near the golf resort owned by US President
REUTERS
25/100
Protesters wear orange face makeup
Getty
26/100
Pro-Trump supporters demonstrate outside the US Embassy in London
EPA
27/100
Trump protestors on the beach near to the Trump Turnberry resort
PA
28/100
Protestors against the UK visit of US President Donald Trump near Aberdeen
AFP/Getty
29/100
A mounted police officer patrols anti-Trump rally
Getty
30/100
Trump supporter Bill McGibbon outside his cottage near to the Trump Turnberry resort in South Ayrshire
PA
31/100
AFP/Getty Images
32/100
Queen Elizabeth II and President Donald Trump inspect an honour guard at Windsor Castle
Getty Images
33/100
PA
34/100
Queen Elizabeth II stands with US President Donald Trump and his wife, Melania, during their visit to Windsor Castle
PA
35/100
Donald Trump walks ahead of Queen Elizabeth
AP
36/100
Getty Images
37/100
Donald and Melania Trump listen to the Coldstream Guards, play the US national anthem next to the Queen
REUTERS
38/100
Protesters in Windor
Getty Images
39/100
US President Donald Trump and first lady Melanie Trump are greeted by Queen Elizabeth II, during an arrival ceremony with the Guard of Honour at Windsor
AP
40/100
Queen Elizabeth II waits to greet US President Donald Trump as he arrives by helicopter
AFP/Getty
41/100
Ed Miliband joins the march
Angela Christofilou
42/100
PM and President
Getty
43/100
Protestors hold banners
AP
44/100
UK meets US
AFP/Getty
45/100
Protests at Trump visit
Angela Christofilou
46/100
Trump and May
Getty
47/100
Protests at Trump visit
Will Gore
48/100
Protesters for the 'Stop Trump' Women's March gather in London
AP
49/100
US President Donald Trump and Britain's Prime Minister Theresa May hold a joint press conference
AFP/Getty
50/100
Donald Trump and Theresa May attend a press conference
AFP/Getty
51/100
Demonstrators protest against the visit of U.S. President Donald Trump
REUTERS
52/100
Prime Minister Theresa May walks with US President Donald Trump at Chequers
Getty
53/100
Donald Trump UK protest
Angela Christofilou
54/100
First Lady, Melania Trump, tries her hand at bowls
Getty
55/100
US President and British Prime Minister at Chequers
Reuters
56/100
Demonstrator in Black Lives matter T-shirt
Angela Christofilou
57/100
Theresa May and Donald Trump enter Chequers
REUTERS
58/100
Protestors wearing Donald Trump and Theresa May paper mache heads join the protest in Butler's Cross
PA
59/100
First Lady, Melania Trump, looks on as Philip May tries bowls
Getty Images
60/100
American Psycho poster
Angela Christofilou
61/100
First Lady, Melania Trump, reacts as she tries her hand at bowls
Getty
62/100
Donald Trump protest in London
Angela Christofilou
63/100
Theresa May, Donald Trump with US ambassador to the United Kingdom Woody Johnson and British Foreign Secretary Jeremy Hunt at the start of the bilateral meeting at Chequers
EPA
64/100
Melania Trump and Philip May wave flags
REUTERS
65/100
Donald Trump is greeted by Theresa May
AP
66/100
The US First Lady Melania Trump, helps children to make poppies
PA
67/100
The handshake between Donald Trump and Theresa May
AP
68/100
Demonstrators raise a six meter high effigy of Donald Trump
Getty
69/100
Donald Trump stands alongside Theresa May after he arrived for talks at Chequers, her country residence in Buckinghamshire
PA
70/100
A six-meter high cartoon baby blimp of Donald Trump hovers next to the statue of former Prime Minister Winston Churchill
AP
71/100
First Lady, Melania Trump, accompanied by Philip May, meets schoolchildren and British Army veterans
Getty
72/100
A lookalike of former British Foreign Minister Boris Johnson stands next to a person in a cage wearing a money suit and a mask of Donald Trump
AP
73/100
Donald Trump gestures as he prepares to board Marine One to depart the US ambassador's residence Winfield House
AFP/Getty
74/100
Demonstrators stand in front of a blimp portraying US. President Donald Trump, in Parliament Square
REUTERS
75/100
The Prime Minister hosts President Trump and First Lady Melania at a black tie dinner with business leaders at Blenheim Palace
AFP/Getty
76/100
The Prime Minister, accompanied by husband Philip, arrive with President Trump and First Lady Melania to a black tie dinner with business leaders at Blenheim Palace
AP
77/100
The Prime Minister and President Trump are seen holding hands, not for the first time
EPA
78/100
President Donald Trump pumps his fist during his arrival, with first lady Melania Trump, in Regent's Park
AP
79/100
Demonstrators bang pots and pans as they gather at the US ambassador residence in Regent's Park
PA
80/100
US President Donald Trump and US First Lady Melania Trump walk in the grounds of the US ambassador's residence Winfield House
AFP/Getty
81/100
A demonstrator protests next to the specially erected fence surrounding the US ambassador's residence
REUTERS
82/100
A motorcade arrives at Winfield House in London, the residence of American Ambassador to the to the Court of St James's
PA
83/100
A presidential helicopter lands in the grounds of the US ambassador residence in Regent's Park
PA
84/100
Protesters chant and wave placards during a demonstration outside Winfield House
Getty
85/100
he Marine One helicopter carrying US President Donald Trump and First Lady Melania Trump flies past the BT Tower
Getty
86/100
Protesters chant and wave placards during a demonstration outside Winfield House
Getty
87/100
US President Donald Trump and First Lady Melania Trump disembark from Air Force One after arriving in the UK
Reuters
88/100
US First Lady Melania Trump and US President Donald Trump are greeted by US Ambassador to the United Kingdom Woody Johnson
AFP
89/100
US President Trump and Melania Trump leaving Stansted Airport
PA
90/100
An honour guard stands to receive US President Donald Trump and US First Lady Melania Trump
AFP/Getty
91/100
Donald and Melania
Getty
92/100
US President Donald Trump and First Lady Melania Trump greet Secretary of State for International Trade Liam Fox on their arrival
Getty
93/100
US Marine Corps Osprey aircraft taking off
PA
94/100
Us President Donald Trump and First Lady Melania Trump disembark from Air Force One
AP
95/100
US President Trump and Melania Trump arrive at Stansted
PA
96/100
A giant 'Human Rights Nightmare' banner is unfurled by Amnesty International activists across the river Thames on Vauxhall Bridge to protest against the visit of US President Donald Trump
AP
97/100
US President Donald Trump waves as he arrives in the UK
PA
98/100
An armed police officier waits on the tarmac at Stansted Airport
AFP/Getty
99/100
US President Donald Trump and Melania Trump arrive at Stansted Airport
PA
100/100
Armed police await the arrival of US President Donald Trump at Stansted Airport
REUTERS
He was accused of breaking royal protocol twice within minutes of meeting the Queen at Windsor Castle by failing to bow and walking in front of the monoarch.
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