Maria of Loon-Heinsberg

Maria of Loon-Heinsberg (1426 – 20 April 1502) was the daughter of John II of Loon, Lord of Jülich, Heinsberg and Löwenberg. Her mother was the second wife of John II, Countess Margaret of Solms-Braunfels.
Maria died on 20 April 1502 as the last member of the house of Loon-Heinsberg and is buried with her husband in the mausoleum of Engelbert I of Nassau in the Church of Our Lady at the Market Square in Breda.
Marriage and issue.
She married on 7 February 1440 with John IV, Count of Nassau, Lord of Breda. They had the following children: