Stefan Dušan was crowned King in September 1331, after months of civil war. Dušan exploited the Byzantine civil war and made major gains beginning in 1342. Having all of Macedonia under his rule, Stefan Dušan was proclaimed "Emperor of Serbs and Greeks" in September 1345, then crowned as such in April 1346. Dušan, as an emperor, granted Byzantine titles upon his magnates. Simeon Uroš and Jovan Asen were given the "despot" title, while others were given the "sebastokrator" and "kesar" titles.