Margaret of Austria was born 25 December 1584 in Graz, Austria to Karl II. Franz von Innerösterreich (1540-1590) and Maria Anna von Bayern (1551-1608) and died 3 October 1611 San Lorenzo de El Escorial, Spain of childbirth. She married Philip III of Spain (1578-1621) 18 April 1599 in Valencia, Spain.
Children
| Name | Birth | Death | Joined with |
| Anna Maria Mauricia of Spain (1601-1666) | 22 September 1601 Benavente Palace, Valladolid, Spain | 20 January 1666 Paris, France | Louis XIII of France (1601-1643) |
| Maria of Spain (1603-1603) | |||
| Philip IV of Spain (1605-1665) | 8 April 1605 | 17 September 1665 | Elisabeth de Bourbon (1602-1644) Maria Anna von Österreich (1634-1696) María Inés Calderón (1611-1646) |
| Maria Anna Margarita of Spain (1606-1646) | 18 August 1606 San Lorenzo de El Escorial, Spain | 13 May 1646 Linz, Austria | Ferdinand III, Holy Roman Emperor (1608-1657) |
| Carlos of Spain (1607-1632) | |||
| Ferdinand of Spain (1609-1641) | |||
| Margarita Francisca of Spain (1610-1617) | |||
| Alfonso Mauricio of Spain (1611-1612) | |||
Footnotes (including sources)
| ‡ General |
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