Inspired by discussion about Frederick Augustus of Saxony remaining Protestant. What about other option-member of House of Hohenzollern replaces him.
So Frederick, OTL first King of Prussia, is as capable as ruler of Brandenburg as IOTL, but his physicall health is worse. He dies earlier (in 1695) and his children are short living and all of them predeceased him, meanwhile his younger brother Henry (who IOTL died as infant in 1664) is healthly boy and grows into healthly adult. Like Augustus IOTL Henry of Brandenburg is not very religious, and before inheriting title of Elector he fights Ottomans in Hungary in Habsburg's service. He is possibly also husband of Ludwika Karolina Radziwiłł, who IOTL married his brother Louis. Henry of Brandenburg is ambitious like Augustus was IOTL and decides to run for Polish crown. For Habsburgs he's certainly better than Conti. He has also other advantages: his wife is heiress of vast estates in Lithuania, Brandenburg troops are better than Saxon one and Hohenzollerns from decades corrupted magnates of Western Poland (which is full of their clients) thus have large support base. How do you see his chances?
So Frederick, OTL first King of Prussia, is as capable as ruler of Brandenburg as IOTL, but his physicall health is worse. He dies earlier (in 1695) and his children are short living and all of them predeceased him, meanwhile his younger brother Henry (who IOTL died as infant in 1664) is healthly boy and grows into healthly adult. Like Augustus IOTL Henry of Brandenburg is not very religious, and before inheriting title of Elector he fights Ottomans in Hungary in Habsburg's service. He is possibly also husband of Ludwika Karolina Radziwiłł, who IOTL married his brother Louis. Henry of Brandenburg is ambitious like Augustus was IOTL and decides to run for Polish crown. For Habsburgs he's certainly better than Conti. He has also other advantages: his wife is heiress of vast estates in Lithuania, Brandenburg troops are better than Saxon one and Hohenzollerns from decades corrupted magnates of Western Poland (which is full of their clients) thus have large support base. How do you see his chances?