He belonged to the patrician class of the city and held the feudal titles Free Lord of Zuid-Polsbroek as those of Purmerland and Ilpendam.

[2] The couple had four children:[3] The family of Gerrit de Graeff lived at Herengracht in a mansion, now the Tassenmuseum Hendrikje.

Most of the time he resided at his castle Ilpenstein, and he also owned the country estate Bronstee near Heemstede.

The collection included some famous paintings like Catharina Hooft with her Nurse, painted by Frans Hals, and the Pickenoys representative Marriage portraits from Cornelis de Graeff and Catharina Hooft.

In 1811 De Graeff inherited the Vrijheerlijkheiden Zuid-Polsbroek, Purmerland and Ilpendam from his father.