Syrian dissident Riad Turk, who has been compared to Nelson Mandela for spending years in prison for his staunch opposition to the government, died Monday in exile in France, his daughter said."My father died peacefully and satisfied of what he has accomplished, surrounded by his two daughters and his grandchildren," Khuzama Turk told AFP. He was 93.France's ambassador to Syria Brigitte Curmi wrote on X: "The Syrian Mandela Riad Turk just left us after a whole life of struggle for a free and democratic Syria.