Question: Where did Philip Frederick Of The Palatinate's father die?
Answer: Mainz

An Imperial edict formally deprived him of the Palatinate in 1623. He lived the rest of his life in exile with his wife and family, mostly at The Hague, and died in Mainz in 1632. His eldest surviving son Charles I Louis, Elector Palatine, returned to power in 1648 with the end of the war