Complex sentence: Having completed his studies, Chenevière married Blanche Ernestine Augustine Lugol during 1885; the next year, their first son, Jacques Chenevière, was born in Paris.
Split into simpler sentences: Having completed his studies, Chenevière married Blanche Ernestine Augustine Lugol. Meanwhile, Chenevière and his wife had their first son, Jacques Chenevière, who was born in Paris.