Agneta de Graeff van Polsbroek, was a patrician woman from the Dutch Golden Age. She became known as the mother-in-law of Johan de Witt.
Agneta de Graeff van Polsbroek (ca. 1663/64), painted by Wallerant Vaillant
Agneta de Graeff van Polsbroek in 1621 at the age of 18
Jacob Dircksz de Graeff, free lord of Zuid-Polsbroek was an illustrious member of the Dutch patrician De Graeff family. He belonged to States Faction and was an influential Amsterdam regent and burgom
Deed of Fief of the States of Holland for the tithe in Rietveld, Poldertienden (Oliviersblok), Groot-Rietveld, Klein-Rietveld, Tournooisveld, Oudeland and Bredeveld (Bredeveld) in 1616
Personal coat of arms (shown without the heart shield who shows the three silver rhombuses on red of the Free Lordship of Zuid-Polsbroek)
Ancient coat of arms Jacob Dircksz de Graeff quartered