Winston Churchill, a former Conservative MP and grandson of the Second World War prime minister, died today.
He was 69 and had been battling with cancer for two years.
After working as a foreign correspondent in the 1960s, Mr Churchill served as a Manchester MP between 1970 and 1997.
He was, before his death, the president of the UK National Defence Association (UKNDA), which campaigns for more resources for the armed forces. He was one of the founders of the group in 2007.
Mr Churchill's father was Randolph Churchill, another Tory MP and the son of Sir Winston Churchill, the wartime prime minister.
UKNDA chief executive Commander John Muxworthy said: "The death of Winston Spencer Churchill after a two-year protracted battle against cancer, bravely and doggedly fought, is a grievous loss to the UKNDA.
"'WSC', as he used to sign himself, was our very first president. His untimely early death is a greater tragedy for the country, which he served devotedly for many years.
"As president of the UKNDA, WSC was generous, hardworking, proactive, and an inspirational leader.
"A true patriot, WSC followed in the steps of his grandfather, Sir Winston, who in the 1930s campaigned ceaselessly for this country to rearm in the face of the ever-growing threat from Nazi Germany.
"Eighty years on, 'our' Winston has been fighting the same battle.
"WSC never faltered in his devotion and commitment to this country and its national and international interests.
"Our sympathies go out especially to his family who have supported him in his valiant struggle throughout, and especially in the final months when they were at his bedside at all times.
"Farewell, Winston. If there is a Valhalla, you are surely there."
Colonel Bob Stewart, vice-president of the UKNDA, said: "Winston was a thoroughly decent man and a great friend to me.
"I first got to know him 17 years ago and twice during that time I have asked for his help on behalf of other people who really needed assistance - and twice he gave it without reservation.
"By so doing, he changed those people's lives forever.
"He did that quietly and without a fuss. I shall miss him terribly. God bless, Winston."