Korte-Landt

   The Courtlandts, or Van Courtandts, are descended from a noble Russian family. The orthography, in the Dutch language, is properly korte-landt, meaning short land, a term expressing the peculiar form of the ancient duchy of Courland in Russia. This domain constituted a portion of Livonia, but was conquered by the Teutonic knights in 1561, and subsequently became a fief of Poland. It remained a short time independent, under its own dukes, after the fall of that power, but in 1795 it was united to Russia. The dukes of Courland were represented in 1610 by the Right Honorable Steven Van Cortlandt, then residing at Cortlandt, in South Holland. He was the father of Oloff Stevenson Van Cortlandt, the first lord of the manor, of that name, on the Hudson.

The Pictorial Field-Book of the Revolution...Vol.2 by Benson John Lossing.