Complex sentence: Zoltan Báthory is from Szentendre, Hungary, temporarily joined the post-grunge band U.P.O. in 2004 replacing Ben Shirley (on Bass).
Split into simpler sentences: Zoltan Báthory is from Szentendre, Hungary. Later he temporarily joined the post-grunge band U.P.O. in 2004 replacing Ben Shirley (on Bass).