Complex sentence: Justinus van Nassau (1559-Leiden, 1631) was the only extramarital child of William of Orange and a Dutch army commander, known for unsuccessfully defending Breda against the Spanish and the depiction of his surrender on the famous picture by Diego Velazquez.
Split into simpler sentences: Justinus van Nassau (1559-Leiden, 1631) was the only extramarital child of William of Orange. He was a Dutch army commander known for unsuccessfully defending Breda against the Spanish, and the depiction of his surrender on the famous picture by Diego Velazquez.