Christian I was the Duke of BirkenfeldBischweiler from 1600 until 1654.
Christian was born in Birkenfeld in 1598 as the youngest son of Charles I, Count Palatine of ZweibrckenBirkenfeld. His fathers lands were partitioned after his death and Christian received the territory around Bischwiller in Alsace. Christian died in Neuenstein in 1654 and was buried in Bischwiller.
Source: Wikipedia