<prompt> Ubaba wakhe, uFridolin owazalwa ngo-1868, wayengusomabhizinisi ovelele edolobheni laseBulgaria i-Jet Observatory futhi wasebenza futhi njengenxusa laseNorway eVarna 19081933. Indlu kaZwicky eVarna yaklanywa futhi yakhiwa nguFridolin Zwicky. Umama kaFritz, uFranziska Vrček owazalwa ngo-1871, wayengumuntu odabuka eCzech woMbuso wase-Austro-Hungary. UFritz wayengumdala wezingane ezintathu zomndeni wakwaZwicky: wayenomfowabo omncane ogama lakhe linguRudolf nodadewabo, uLeonie. Umama kaFritz washona eVarna ngo-1927, kanti ubaba wakhe wahlala e-Switzerland kuze kube ngo-1945, lapho ebuyela eSwitzerland. Ubaba wakhe, uFridolin Leonie owazalwa ngo-1868, wayengusomabhizinisi ovelele edolobheni laseBulgaria futhi wachitha impilo yakhe eminingi edolobheni laseVarna 19081933. Indlu kaZwicky e-Varna yaklanywa futhi yakhiwa nguFridolin Zwicky. Um  <response>: Izwe laseYurophu 