Gulian Verplanck (1637–1684) (also known as Gulyne, Galyna and Geleyn[1]) was a colonial American fur trader and merchant in New York.
He was the eldest son of Abraham Isaacsen Verplanck, was a merchant, fur trader, and purchaser of a 1/3rd interest in what became the sprawling Rombout Patent in the southeast of the then Province of New York.
His younger sister, Catharina Verplanck, was the wife of David Pieterse Schuyler, the Dutch born fur trader who became an Alderman of Albany.
[2] In 1685, King James II of England issued a royal grant for some 85,000 acres (340 km2) of land to Verplanck and partners Francis Rombouts, and Stephanus Van Cortlandt (both former mayors of New York City) they had purchased from Wappinger Indians on the east bank of the Hudson River in what is today's southern Dutchess County, New York.
After his death, his widow Henrica married Jacobus Kip, grandson of Hendrick Hendricksen Kip, and the family's share of the patent passed down through that line.