 Complete the following phrase:  The interregnum concluded on 12 December 1575 when primate Jakub Uchański declared Maximilian II, Holy Roman Emperor, as the next king. The decision was condemned by the anti-Habsburg coalition, which demanded a native candidate. As a compromise, on 13 December 1575 Anna Jagiellon  sister of Sigismund Augustus and a member of the Jagiellonian dynasty  became the new monarch. The nobles simultaneously elected Stephen Báthory as co-regent, who ruled jure uxoris. Báthorys election proved controversial  Lithuania and Ducal Prussia initially refused to recognize the Transylvanian as their ruler. The wealthy port city of Gdańsk Danzig staged a revolt, and, with the help of Denmark, blockaded maritime trade to neutral Elbląg Elbing. Báthory, unable to penetrate the citys extensive fortifications, succumbed to the demands for greater privileges and freedoms. However, his successful 