In Paris he was a court sculptor to King Louis XIV and in Munich he was employed by the Elector Maximilian II Emanuel of Wittelsbach.
[3] In 1714 he created the impressive bronze Apotheosis of Maximilian II Emanuel, Elector of Bavaria (Bavarian National Museum, inv.
The Elector employed many other artists and spent massive sums on his construction projects leading to a large state debt.
He was unable to pay his debts, including the commissions made by de Grof.
This caused de Grof to suffer financial problems towards the end of his life.
[2] De Grof produced many bronze objects as well as a few marble sculptures such as the Neptune at Nymphenburg dated 1737.
As he was in charge of the overall decoration of the architectural projects of Maximilian Emanuel, he made stucco ceilings such as in the stair-well in the Dachau Palace dated to the period 1716–1717.