Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Image | Father | Birth | Ceased to be Duchess | Death | Husband |
| --- | --- | --- | --- | --- | --- |
| Kunigunde of Austria | Frederick III, Holy Roman Emperor ( Habsburg ) | 16 March 1465 | 18 March 1508 husband's death | 6 August 1520 | Albert IV |
| Marie of Baden-Sponheim | Philip I, Margrave of Baden ( Baden ) | 25 June 1507 | 7 March 1550 husband's death | 16 November 1580 | William IV |
| Anne of Austria | Ferdinand I, Holy Roman Emperor ( Habsburg ) | 7 July 1528 | 24 October 1579 husband's death | 16 October 1590 | Albert V |
| Renata of Lorraine | Francis I, Duke of Lorraine ( Lorraine ) | 20 April 1544 | 15 October 1597 husband's abdication | 22 May 1602 | William V |
| Elisabeth of Lorraine | Charles III, Duke of Lorraine ( Lorraine ) | 9 October 1574 | 23 February 1623 elevated to Electress | 4 January 1635 | Maximilian I |
| Name | Father | Birth | Ceased to be Duchess | Death | Spouse |
Question:
Who was the husband of marie of baden-sponheim?
Answer:
William IV