1 5 7 5 . ▁ ▁After ▁her ▁death ▁J ever ▁became ▁a ▁part ▁of ▁Old enburg , ▁but ▁East ▁F ris ia ▁made ▁a ▁claim ▁for ▁the ▁territory ▁as ▁well . ▁In ▁the ▁following ▁dec ades ▁East ▁F ris ia ▁tried ▁to ▁block ▁all ▁roads ▁between ▁J ever ▁and ▁Old enburg . ▁It ▁was ▁not ▁before ▁the ▁ 1 7 th ▁century ▁that ▁the ▁host ilities ▁between ▁East ▁F ris ia ▁and ▁Old enburg ▁ended . ▁ ▁From ▁ 1 6 6 7 ▁to ▁ 1 7 9 3 ▁J ever ▁was ▁an ▁exc lave ▁of ▁An halt - Z er bst , ▁and ▁after ▁Napole onic ▁occupation ▁the ▁western most ▁exc lave ▁of ▁Pr uss ia . ▁In ▁ 1 8 1 8 ▁J ever ▁became ▁a ▁part ▁of ▁Old enburg ▁again . ▁ ▁The ▁southern ▁part ▁of ▁today ' s ▁District ▁of ▁F ries land ▁is ▁the ▁" F ries ische ▁We h de " ▁(" F ris ian ▁Wood s "), ▁which ▁also ▁was ▁most ▁of ▁the ▁time ▁part ▁of ▁Old enburg . ▁This ▁region ▁later ▁formed ▁the ▁District ▁of ▁V arel . ▁ ▁The ▁District ▁was ▁established ▁in ▁ 1 9 3 3 ▁by ▁mer ging ▁the ▁former ▁districts ▁of ▁J ever ▁and ▁V arel ▁under ▁the ▁name ▁of ▁" F ries land ". ▁In ▁ 1 9 7 7 ▁it ▁was ▁dissol ved ▁and ▁divided ▁between ▁the ▁neighbour ing ▁districts ▁of ▁W itt mund ▁and ▁Am mer land . ▁The ▁dissol ution ▁was ▁declared ▁un const itution