Count Heinrich the rich of Nassau (1180-1250) was married to the Dutch Machteld 
of Guelders. Their eldest son, Walram II (1220-1276), was the father of the 
German king Adolf (1255-1298). They are the ancestors of the line of 
Nassau-Weilburg and the present grandduke of Luxembourg. A younger son, Otto I 
(+1289), is the ancestor of the line of Nassau-Dillenburg and the present queen 
of The Netherlands. The line of Nassau-Dillenburg acquired possessions in The 
Netherlands by marriage: Engelbert I (1370-1442) married the rich heiress 
Johanna van Polanen. They acquired the principality of Orange, when Hendrik III 
of Nassau (1483-1538) married Claudia of Chalon. 
 
Johann V (1455-1516), count of Nassau, lord of Dillenburg, Siegen and Breda, 
stadholder of Guelders and Zutphen 1504-1505, grandson of Engelbert I, married 
1482 Elisabeth of Hesse (1466-1523). Children: 
    Hendrik III of Nassau (1483-1538), count of Nassau, lord of Breda, 
    stadholder of Holland and Zealand 1517-1522, married 1st 1503 Françoise of 
    Savoy (+1511) and 2nd 1515 Claudia of Chalon and Orange (1498-1521), 
    daughter of Jean II of Chalon (+1502), prince of Orange 1475, and Philiberte 
    of Luxembourgh, granddaughter of William VII of Chalon (+1475), prince of 
    Orange 1463, and Catherine of Brittany (1428-1476). Henry married 3rd 1524 
    Mencia de Mendoza (1508-1554), marquise of Cenette. He had one child of his 
    2nd marriage: 
        René of Chalon (1519-1544), count of Nassau, prince of Orange 1538, 
        married 1540 Anna of Lorraine (1522-1568). One daughter born and died in 
        1544. 
    John (1484-1504) 
    Ernst (b+1486)  
    William I the rich (1489-1555), count of Nassau, Vianden and Dietz, married 
    1st 1506 Walburgis of Egmond (1489-1529),





	married 2nd 1531 Juliana of Stolberg-Wenigerode (1506-1580),
        widow of Philip II of Hanau-Münzenberg (1501-1529). 
        Children: 
        Elisabeth (1515-1523) 
        Magdalena (1522-1567) married 1538 Herman of Nieuwenaar and Meurs 
        (1514-1578)