Complex sentence: Franjo Šefer was born in 1905 in Vienna to a Jewish family and they moved to Karlovac in 1910 and there he made his first steps in the tennis court.
Split into simpler sentences: Franjo Šefer was born in 1905 in Vienna to a Jewish family. They moved to Karlovac in 1910, where he made his first steps on the tennis court.