On 17 March 1708, he was made by Duke Leopold a member of his privy council and requested to write the history of Lorraine.

In 1315, Duke Leopold dispatched a powerful Austrian army to douse this growing Swiss nationalism.

He was sent on many important diplomatic missions, and at the end of his life was chancellor and chief minister to Duke Leopold of Lorraine.

They were assisted by benefices from outside such as the ones from Duke Leopold.

The battle was a decisive Swiss victory in which Duke Leopold and numerous Austrian nobles died.

The line of Schleswig-Holstein-Sonderburg-Wiesenburg died out with Duke Leopold.

June 3 - Duke Leopold IV of Austria (born 1371)

Lorraine, which had been occupied by the French since 1670, was returned to its rightful Duke Leopold, albeit with a right of way to the French military.

Duke Leopold sent Constance back to Aragon.

Gertrude's body was torn to pieces, her brother and Duke Leopold narrowly escaped with their lives.