Complex sentence: Justus Menius (1499-1558), a Lutheran theologian, whose name is Latinized from Jost or Just (i.e. Jodocus) Menig, was born at Fulda of poor but respectable parents on the 13 December 1499.
Split into simpler sentences: Justus Menius (1499-1558) was a Lutheran theologian, whose name is Latinized from Jost or Just (i.e. Jodocus) Menig. He was born at Fulda of poor but respectable parents on the 13 December 1499.