Former Canadian Prime Minister Brian Mulroney died Thursday at the age of 84. “He died peacefully, surrounded by his family, ” his daughter Caroline said on social media.

This Quebecer left his mark on Canadian political life in the 1980s, notably with the signing of a historic free trade treaty with the United States. He notably led the charge against the apartheid regime in South Africa, irritating his British counterpart Margaret Thatcher in the process. He retired with the worst popularity rating ever recorded, while the economy was faltering and unemployment was at its highest.