▁inter mez zo ▁on ▁the ▁Russian ▁imperial ▁throne ▁in ▁ 1 7 4 0 . ▁Not ▁until ▁ 1 7 5 4 ▁was ▁the ▁residence ▁moved ▁back ▁to ▁Brun sw ick , ▁into ▁the ▁new ▁Brun sw ick ▁Palace . ▁In ▁ 1 8 1 4 ▁the ▁princip ality ▁became ▁the ▁Duch y ▁of ▁Brun sw ick , ▁ruled ▁by ▁the ▁senior ▁branch ▁of ▁the ▁House ▁of ▁W elf . ▁ ▁Princi p ality ▁of ▁Cal enberg ▁– ▁later ▁Elect or ate ▁of ▁Brun sw ick - L ü ne burg ▁▁ ▁In ▁ 1 4 3 2 ▁the ▁est ates ▁gained ▁by ▁the ▁Princi p ality ▁of ▁Brun sw ick - W olf en b ütt el ▁between ▁the ▁De ister ▁and ▁Le ine ▁split ▁away ▁as ▁the ▁Princi p ality ▁of ▁Cal enberg . ▁In ▁ 1 4 9 5 ▁it ▁was ▁expanded ▁around ▁Gött ingen ▁and ▁in ▁ 1 5 8 4 ▁went ▁back ▁to ▁the ▁Wolf en b ütt el ▁Line . ▁In ▁ 1 6 3 4 , ▁as ▁a ▁result ▁of ▁inheritance ▁distributions , ▁it ▁went ▁to ▁the ▁House ▁of ▁L un eb urg ▁res iding ▁at ▁C elle ▁Castle . ▁In ▁ 1 6 3 5 ▁it ▁was ▁given ▁to ▁George , ▁younger ▁brother ▁of ▁Prince ▁Ernest ▁II ▁of ▁Lü ne burg , ▁who ▁chose ▁Han over ▁as ▁his ▁residence . ▁New ▁territory ▁was ▁added ▁in ▁ 1 6 6 5 , ▁and ▁in ▁ 1 7 0 5 ▁the ▁Princi p ality ▁of ▁L un