Adolphus Philipse (1665–1750) was a wealthy landowner of Dutch descent in the Province of New York. In 1697 he purchased a large tract of land along the east bank of the Hudson River stretching all the way to the east to the Connecticut border. Then known as the "Highland Patent" it became in time referred to as the Philipse Patent. After his death the Patent was inherited by his nephew, Frederick Philipse II, his only heir-at-law, who became the second Lord of the Manor of Philipsborough in Westchester County.[1][2]