Complex sentence: Marian Lutosławski was born in 1871 at an estate in Drozdowo northeast of Warsaw to a Polish family of agronomist Franciszek Dionizy Lutosławski and his second wife Paulina, highly educated members of the landed gentry.
Split into simpler sentences: Marian Lutosławski was born in 1871 at an estate in Drozdowo northeast of Warsaw to a Polish family. His parents were agronomist Franciszek Dionizy Lutosławski and his second wife Paulina, highly educated members of the landed gentry.