Father: Duke Johann XVI of Oldenburg Born: September 9, 1540 Married: Unknown Died: November 12, 1603
Mother: Princess Elisabeth of Schwarzburg Born: April 13, 1541 Died: December 26, 1612
Children: 1. Princess Anna of Oldenburg-Oldenburg (b.1575) 2. Princess Marie of Oldenburg-Oldenburg (b.1578) 3. Princess Katharina of Oldenburg-Oldenburg (b.1580) 4. Duke Anton of Oldenburg-Oldenburg (b.1583) 5. Princess Magdalene of Oldenburg (b.10/6/1585)