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The Independent Online
Herbert Zipper, conductor, died Santa Monica, California 21 April, aged 92. Formed a secret orchestra at Dachau concentration camp to raise the spirits of other prisoners. Later held prisoner in Buchenwald and by the Japanese in Manila. When Manila was liberated in 1945, he reassembled the Manila Orchestra.

Gerald Piaget, watch-maker, died Areuse, Switzerland 17 April, aged 79. Co-founded Piaget watches with his father and three brothers in 1942, making watch parts in the winter and farming in the summer; their first watch was produced in 1948.

Brigadier Sir Geoffrey Hardy-Roberts, soldier and administrator, died 9 April, aged 89. Superintendent of Middlesex Hospital 1946-67. Master of the Queen's Household 1967-73.