▁the ▁small ▁town ▁of ▁Kal und borg , ▁Den mark , ▁at ▁the ▁child hood ▁home ▁of ▁her ▁mother , ▁Charlotte ▁Und set ▁( 1 8 5 5 – 1 9 3 9 , ▁n ée ▁Anna ▁Maria ▁Charlotte ▁G yth ). ▁Und set ▁was ▁the ▁el dest ▁of ▁three ▁daughters . ▁She ▁and ▁her ▁family ▁moved ▁to ▁Norway ▁when ▁she ▁was ▁two . ▁ ▁She ▁grew ▁up ▁in ▁the ▁Norwegian ▁capital , ▁Os lo ▁( or ▁Krist ian ia , ▁as ▁it ▁was ▁known ▁until ▁ 1 9 2 5 ). ▁When ▁she ▁was ▁only ▁ 1 1 ▁years ▁old , ▁her ▁father , ▁the ▁Norwegian ▁arch ae ologist ▁Ing val d ▁Martin ▁Und set ▁( 1 8 5 3 – 1 8 9 3 ), ▁died ▁at ▁the ▁age ▁of ▁ 4 0 ▁after ▁a ▁long ▁ill ness . ▁ ▁The ▁family ' s ▁economic ▁situation ▁meant ▁that ▁Und set ▁had ▁to ▁give ▁up ▁hope ▁of ▁a ▁university ▁education ▁and ▁after ▁a ▁one - year ▁secret arial ▁course ▁she ▁obtained ▁work ▁at ▁the ▁age ▁of ▁ 1 6 ▁as ▁a ▁secretary ▁with ▁an ▁engineering ▁company ▁in ▁Krist ian ia , ▁a ▁post ▁she ▁was ▁to ▁hold ▁for ▁ 1 0 ▁years . ▁ ▁She ▁joined ▁the ▁Norwegian ▁Auth ors ' ▁Union ▁in ▁ 1 9 0 7 ▁and ▁from ▁ 1 9 3 3 ▁through ▁ 1 9 3 5 ▁head ed ▁its ▁Liter ary ▁Council , ▁eventually ▁serving ▁as ▁the ▁union ' s ▁chairman ▁from ▁ 1 9 3 6