After Rudolf's death on 27 July 1365, Albert III and Leopold (their elder brother Friedrich had died in 1362) assumed the rule over the Habsburg lands, with Albert taking the additional rights as eldest.
Initially buried in Königsfelden Monastery, his mortal remains were transferred firstly to St. Blaise Abbey in a solemn ceremony on 14 November 1770, and finally to Saint Paul's Abbey, Carinthia.