Philipp Sigmund of Dietrichstein (9 March 1651 – 3 July 1716), was a German nobleman, by birth member of the House of Dietrichstein.
He was the fourth child and third (but second surviving) son of Maximilian, 2nd Prince of Dietrichstein zu Nikolsburg, and his second wife, Countess Sophie Agnes of Mansfeld-Vorderort-Bornstädt, a daughter of Wolfgang III, Count of Mansfeld-Vorderort-Bornstädt (1575-1638) and his wife, Sophie Schenk von Tautenburg, widowed Countess of Solms-Sonnenwalde (1597-1636). [1]
In 1680, Philipp Sigmund married firstly with Baroness Marie Elisabeth Hofmann von Grünbühel und Strechau (1663 – 21 January 1705). They had three children:
After 1705, Philipp Sigmund married secondly with Dorothea Josepha, Baroness Jankovská z Vlašimi (1666 – 31 May 1742). They had no children.