1 9 1 4 ▁he ▁married ▁Julia ▁He im ann , ▁with ▁whom ▁he ▁had ▁two ▁sons , ▁Hein z ▁and ▁Walter ▁and ▁a ▁daughter , ▁B ett ina . ▁When ▁World ▁War ▁I ▁began ▁in ▁August ▁ 1 9 1 4 ▁he ▁en list ed ▁to ▁fight ▁for ▁the ▁Kaiser ▁however ▁was ▁rejected ▁because ▁of ▁his ▁var ic ose ▁ve ins . ▁In ▁October ▁ 1 9 1 5 ▁he ▁was ▁appointed ▁to ▁the ▁newly ▁created ▁Chair ▁in ▁Chem istry ▁at ▁the ▁University ▁of ▁Ist an bul . ▁During ▁his ▁time ▁in ▁Ist an bul ▁from ▁ 1 9 1 5 ▁till ▁ 1 9 1 8 ▁he ▁established ▁a ▁close ▁contact ▁to ▁the ▁Turkish ▁chem ists ▁in ▁Ist an bul . ▁He ▁returned ▁to ▁the ▁University ▁of ▁Bres lau ▁where ▁he ▁stayed ▁until ▁he ▁was ▁forced ▁to ▁abandon ▁his ▁office ▁in ▁ 1 9 3 3 ▁by ▁the ▁newly ▁elected ▁Naz i ▁government . ▁ ▁After ▁his ▁em igration ▁in ▁ 1 9 3 3 ▁and ▁a ▁short ▁stay ▁at ▁the ▁Oxford ▁University ▁he ▁went ▁back ▁to ▁Ist an bul ▁where ▁he ▁stayed ▁from ▁ 1 9 3 4 ▁till ▁ 1 9 5 5 . ▁He ▁had ▁great ▁influence ▁on ▁the ▁development ▁of ▁chem istry ▁in ▁Turkey . ▁ ▁In ▁ 1 9 5 5 ▁he ▁came ▁back ▁to ▁Germany , ▁where ▁he ▁professor ▁at ▁the ▁University ▁of ▁Hamburg . ▁Fritz ▁Ar nd t ▁died ▁on ▁ 8 ▁December ▁ 1 9 6 9 ▁in ▁Hamburg . ▁ ▁Ar nd