Fritz Zwicky a mụrụ na Varna, Bulgaria, ka a Swiss nna. Nna ya, Fridolin (b. 1868), bụ onye a ma ama na-emepụta ihe na Bulgarian obodo Varna na-eje ozi dị ka onye nnọchianya nke Norway na Varna (1908<unk>1933). The Zwicky House na Varna e mere na wuru site Fridolin Zwicky. Fritz nne, Franziska Vrček (b. 1871), bụ onye agbụrụ Czech nke Austria-Hungarian Alaeze Ukwu. Fritz bụ ndị kasị okenye nke ezinụlọ Zwicky si ụmụ atọ: o nwere a nwanne aha ya bụ Rudolf na a nwanne, Leonie. Fritz nne nwụrụ na Varna na 1927, na nna ya nọgidere na ahia ruo mgbe 1945, mgbe ọ laghachiri Switzerland. Nna ya, Leonie zụrụ a Bulgarian nwa agbọghọ si Varna Observatory na nọrọ ya kasị oge ndụ na obodo Bulgarian Varna (1908<unk>1933). Ọ na-arụ ọrụ dị ka onye nchoputa na-arụ ọrụ na ọtụtụ afọ isii na-azụlite agụmakwụkwọ na obodo Varna (1904<unk>1943), a họpụtara ya ka ọ bụrụ onye ndu
Switzerland