After the death of Charles the Bold in an attempt to conquer the Duchy of Lorraine caused the extinction of the House of Burgundy in 1477, the order passed to the House of Habsburg. A few months after his marriage to the heiress Mary of Burgundy, Emperor Maximilian of Habsburg was knighted in Bruges on April 30, 1478 and then appointed sovereign (grand master) of the order. All renegade or disloyal knights of the order in the course of the subsequent War of the Burgundian Succession were expelled from the order by Maximilian. The memory of the dead was erased and their coats of arms were broken.