▁date ▁to ▁the ▁ 1 2 th ▁or ▁ 1 3 th ▁century . ▁In ▁ 1 2 4 8 , ▁the ▁castle ▁came ▁into ▁possession ▁of ▁the ▁House ▁of ▁Hen ne berg ▁and ▁in ▁ 1 3 5 3 ▁it ▁passed ▁to ▁the ▁House ▁of ▁W ett in ▁with ▁the ▁marriage ▁of ▁Frederick ▁III ▁with ▁Catherine ▁of ▁Hen ne berg ▁and ▁was ▁initially ▁regarded ▁by ▁them ▁as ▁a ▁Sax on ▁out post ▁within ▁Fran con ia . ▁ ▁During ▁the ▁Diet ▁of ▁A ugs burg ▁in ▁ 1 5 3 0 ▁reform er ▁Martin ▁Luther ▁spent ▁six ▁months ▁at ▁the ▁castle ▁( located ▁at ▁the ▁southern most ▁point ▁of ▁the ▁Sax on ▁du chy ) ▁while ▁his ▁lie ge ▁lord , ▁John , ▁Elect or ▁of ▁Sax ony , ▁attended ▁the ▁Diet . ▁Luther ▁was ▁forb idden ▁to ▁attend ▁by ▁the ▁Elect or , ▁who ▁fe ared ▁that ▁he ▁would ▁be ▁imprison ed ▁and ▁burn ed ▁as ▁a ▁her etic . ▁While ▁quarter ed ▁at ▁the ▁castle ▁Luther ▁continued ▁with ▁his ▁translation ▁of ▁the ▁Bible ▁into ▁German . ▁ ▁In ▁ 1 5 4 7 , ▁the ▁pr inc ely ▁residence ▁was ▁moved ▁from ▁the ▁V este ▁to ▁a ▁former ▁monaster y , ▁re built ▁as ▁a ▁Renaissance ▁palace , ▁the ▁Ehren burg . ▁ ▁In ▁ 1 5 9 6 , ▁Cob urg ▁was ▁raised ▁to ▁the ▁status ▁of ▁capital ▁of ▁one ▁of ▁the ▁dynast y ' s ▁spl inter ed ▁Sax on - Th uring ian ▁territ ories , ▁the