Johann IV Count of NASSAU-DILLENBURG
He married Marie Countess of Looz-Heinsberg 7 Feb 1440 . Marie Countess of Looz-Heinsberg was born at of Heinsberg, Rheinland, Prussia 1424 daughter of Johann II, Count of Looz and Anna Countess of Solms .
They were the parents of 6
children:
Anna Countess of Nassau-Dillenburg
born 1440/41.
Johanne Countess of Nassau-Dillenburg
born 1444.
Adriane Countess of Nassau
born 7 Feb 1449.
Engelbert II Count of Nassau
born 17 May 1451.
Johann V Count of Nassau-Dillenburg
born 9 Nov 1455.
Ottilie Countess of Nassau
born Abt 1457.
Johann IV Count of Nassau-Dillenburg died 3 Feb 1475 at Dillenburg, Hessen-Nassau, Prussia .
Marie Countess of Looz-Heinsberg died 20 Apr 1502 .