Spouse(s) Oda of Salm-Ravenstein Name John Lord Mother Oda of Horne Children Johanna van Polanen | Father John II Parents John II, Lord of Polanen Noble family House of Polanen Died August 10, 1394 | |
 | ||
Grandchildren Jan IV of Nassau, Henry II, Count of Nassau-Dillenburg Great-grandparents Philips III van Duivenvoorde | ||
Grandparents John I, Lord of Polanen | ||
John III of Wassenaer, Lord of Polanen (1340 – 10 August 1394) was Lord of Polanen (a heerlijkheid south of Monster). The Lords of Polanen were a branch of the House of Wassenaer. He held extensive possessions besides the fief of Polanen.
He was the eldest son of John II (c. 1324 – 1378), from his first marriage to Oda of Horne (1318-1353). In 1353, his father inherited the extensive possessions of William of Duivenvoorde and in the same year, he purchased the Barony of Breda from the Duke of Brabant. When John II died in 1378, John III inherited most of these possessions.
John III was married to Countess Oda of Salm-Ravenstein (1370-1428). Their only child was their daughter Johanna van Polanen, who married Engelbert I of Nassau in 1404. Via this marriage, the House of Nassau inherited the Polanen possessions.
In his 1394 will, John III also mentioned three illegitimate children: