Louis IV of Legnica was a duke of Brzeg from 1633, of Wołów and of Legnica from 1653.
He was the fifth but second surviving son of John Christian, Duke of Brzeg-Legnica-Wołów-Oława, by his first wife, Dorothea Sibylle, daughter of John George,... Wikipedia
Born: April 19, 1616, Brzeg, Poland
Died: November 24, 1663 (age 47 years), Legnica, Poland
Partner: Anne Sophie von Mecklenburg-Güstrow
Parents: John Christian of Brieg and Dorothea Sibylle of Brandenburg