Philipsburg Manor (sometimes referred to as Philipse Manor) was a manor located north of New York City in Westchester County in the Province of New York. Netherlands-born Frederick Philipse I and two partners made the initial purchase of land that had been part of a Dutch patroonship owned by Adriaen van der Donck. Philipse subsequently bought his partners out and added more land before being granted a royal charter in 1693 for the estate, becoming its first lord. After his death, the manor was split between his son and grandson, both of whom continued its development. Among the family's numerous enterprises, the Philipses engaged in the slave trade, using their own slaves to construct most of the buildings on the Philipsburg property. The tenant farmers on the manor represented a diverse population of Europeans. The manor's property was confiscated during the American Revolution when Loyalist Frederick Philipse III, its third and final lord, was attainted for treason by New York's revolutionary government in 1779. The estate's land was used as collateral to raise money to fund the rebellion and later sold at auction. Some of the original structures still stand, including the Philipsburg Manor House in Sleepy Hollow, Philipse Manor Hall (the family seat) in Yonkers, and the Old Dutch Church of Sleepy Hollow, all of which are National Historic Landmarks. History The land that would become Philipsburg Manor was first bought from Adriaen van der Donck, who had been granted a Dutch patroonship in New Netherland before the English takeover in 1664. Frederick Philipse I, Thomas Delavall, and Thomas Lewis purchased the first tracts in 1672 in current-day northern Yonkers. Philipse made several additional purchases between 1680 and 1686 from the Wiechquaeskeck and Sinsink Indian tribes, expanding the property both north and south; he also bought a small plot of land from the Tappans west of the Hudson River. The manor comprised about of land. Philipse also bought out his partners' stakes during this time. The estate's boundaries were the Spuyten Duyvil Creek to the south, the Croton River to the north, the Hudson River to the west, and the Bronx River to the east. Philipse was granted a royal charter in 1693, creating the Manor of Philipsburg and making him first lord of the manor. Along with the three other main manors of the colony—Rensselaerswyck, Cortlandt, and Livingston—Philipsburg created one of the richest and most powerful families in