▁Category : Che chen ▁mart ial ▁artists ▁Category : Che chen ▁sports men ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) <0x0A> </s> ▁O bers ax en ▁() ▁is ▁a ▁former ▁municipality ▁in ▁the ▁district ▁of ▁S urs el va ▁in ▁the ▁Swiss ▁canton ▁of ▁Gra ub ünd en . ▁ ▁On ▁ 1 ▁January ▁ 2 0 1 6 ▁the ▁former ▁municipal ities ▁of ▁O bers ax en ▁and ▁M unda un ▁merged ▁to ▁form ▁the ▁new ▁municipality ▁of ▁O bers ax en ▁M unda un . ▁ ▁History ▁O bers ax en ▁is ▁first ▁mentioned ▁in ▁ 7 6 5 ▁as ▁Sup ers ax a ▁though ▁this ▁is ▁from ▁a ▁copy ▁which ▁dates ▁from ▁later . ▁ ▁In ▁ 9 5 6 ▁it ▁was ▁mentioned ▁as ▁Sup ers ax a , ▁and ▁in ▁ 1 2 2 7 ▁as ▁U bers ah se . ▁ ▁The ▁current ▁settlement ▁was ▁founded ▁in ▁the ▁th ir teenth ▁century , ▁when ▁a ▁group ▁of ▁German - spe aking ▁Wal ser ▁settled ▁the ▁plate au . ▁Right ▁in ▁the ▁heart ▁of ▁the ▁mainly ▁Rom ans h - spe aking ▁S urs el va ▁( which ▁en comp ass es ▁the ▁valley ▁of ▁the ▁V order r hein , ▁along ▁with ▁all ▁of ▁its ▁side ▁valle ys , ▁among ▁others ▁the ▁Val ▁L um nez ia ), ▁O bers ax en ▁is ▁an ▁island ▁of ▁German - spe akers . ▁ ▁Geography ▁ ▁O bers ax en ▁had ▁an ▁area , ▁, ▁of