[2] The grandson of Jacques de Lancy, Étienne, fled to London following the revocation of the Edict of Nantes in 1685, where he obtained denization on March 11, 1686, after taking an oath of allegiance to James II and becoming a British subject.

Anglicizing his name to "Stephen de Lancey," he married into the influential Van Cortlandt family and became a prominent merchant and member of the provincial assembly.

[3] The branch of the family descended from Oliver de Lancey (1718–1785), youngest son of Stephen Delancey, emigrated to Britain, several of its members becoming distinguished officers in the British Army.

[1][2] While most of the family permanently left the United States following the Revolution, John Peter (1753–1828), the son of James De Lancey, resigned his commission in the British Army and returned to New York in 1789, having missed his homeland.

His son, William H. DeLancey (1797–1865), served as the Provost (chief administrator) of the University of Pennsylvania and subsequently became the first Episcopal bishop of the Diocese of Western New York.