Complex sentence: Casagrande was born in Haidenschaft, in present Slovenia, at that time part of the Austrian Empire and moved to Trieste after attending his first year in school in Linz.
Split into simpler sentences: Casagrande was born in Haidenschaft, in present Slovenia, at that time part of the Austrian Empire. He moved to Trieste after attending his first year in school in Linz.