I whanau a Fritz Zwicky i Varna, Bulgaria, ki te papa Swiss. Ko tana papa, a Fridolin (whanau i te tau 1868), he kaihanga ahumahi rongonui i te taone nui o Bulgaria, a, i mahi ano ia hei karere mo Norway i Varna (1908<unk>1933). Ko te Whare Zwicky i Varna i hangaia, i hangaia e Fridolin Zwicky. Ko te whaea o Fritz, a Franziska Vrček (whanau i te tau 1871), he iwi Czech no te Emepaea o Austro-Hungary. Ko Fritz te tuakana o nga tamariki tokotoru o te whanau Zwicky: he teina tana ko Rudolf me tetahi tuahine, ko Leonie. I mate te whaea o Fritz i Varna i te tau 1927, a ko tana papa i noho tonu ki Switzerland tae noa ki te tau 1945, i hoki mai ai ia ki Switzerland. I marena tana tuahine, a Leonie, i te Varna, he kaihanga ahumahi rongonui mai i te taone nui o Bulgaria, a, i noho ia i te taone nui o Bulgaria (1908<unk>1933). I hangaia e Fridolin Zwicky
Switzerland