Gregory, David, nephew of succeeding, born at Aberdeen; became professor of Mathematics in Edinburgh at the age of 23, and in 1691 was appointed Savilian professor of Astronomy at Oxford; was one of the first to publicly teach the principles of Newton's philosophy (1661‒1708).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Gregory Thaumaturgus, St. * Gregory, James