His father had been the former Prime Minister Pierre Trudeau and his mother Margaret Sinclair, the hippie First Lady whose widely reported affairs with Ted Kennedy and Mick Jagger rook place against the drug-addled backdrop of Studio 54 and scandalised Canadians and Americans in equal measure, while her fling with Fidel Castro has haunted her son Justin, whose resemblance to the Communist dictator has been much commented upon.

