Complex sentence: Wander de Haas was born in Lisse, a small town near Leiden, son of Albertus de Haas, principal of the Teacher's College in Middelburg, and Maria Efting.
Split into simpler sentences: Wander de Haas was born in Lisse, a small town near Leiden. He was the son of Albertus de Haas, principal of the Teacher's College in Middelburg, and Maria Efting.