Complex sentence: Louis de Blois (October 1506-January 7,1566), Flemish mystical writer, generally known under the name of Blosius, was born at the château of Donstienne, near Liège, of an illustrious family to which several crowned heads were allied.
Split into simpler sentences: Louis de Blois (October 1506-7 January 1566) was a Flemish mystical writer, generally known under the name of Blosius. He was born at the château of Donstienne, near Liège, of an illustrious family to which several crowned heads were allied.