Father: William, Count of Nassau ("William the Rich", b. 10-Apr-1487, d. 6-Oct-1559)
Mother: Juliana of Stolberg-Werningerode (b. 15-Feb-1506, d. 18-Jun-1580)
Brother: Adolf
Sister: Anna
Sister: Elisabeth
Brother: Henry
Sister: Hermanna
Brother: John
Sister: Juliane
Sister: Katharine
Brother: Louis
Sister: Magdalene
Sister: Maria
Wife: Anna of Egmond (m. 6-Jul-1551. d. 24-Mar-1558, three children)
Wife: Anna of Saxony (m. 25-Aug-1561, annulled 22-Mar-1571 on grounds of insanity, five children)
Wife: Charlotte of Bourbon (m. 24-Apr-1575, d. 5-May-1582, six daughters)
Wife: Louise de Coligny (m. 12-Apr-1583, until his death)

    Stadtholder of Friesland (1580-84)
    Stadtholder of Holland and Zeeland (1572-84)
    Stadtholder of Utrecht (1572-84)
    Stadtholder of Holland, Zeeland and Utrecht (1559-67)
    Prince of Orange (1544-84)