William Lucy was born in Hurstbourne, Hampshire. He died on 4 October 1677 and was buried in the collegiate church. The son of Sir Thomas Lucy and his second wife Constance, daughter and heiress of Richard Kingsmill of Highclere, Hampshire, Lucy entered Trinity College, Oxford in 1610 and graduated BA in 1613 before studying at Lincoln's Inn. He never became a lawyer, however, because in 1615 he entered Caius College, Cambridge, where he remained until 1619 when he was appointed rector of Burghclere, Hampshire; later he added the living of Highclere. Lucy was regarded as Arminian in theology and his living was sequestered in the civil war. In 1657 he published his only work of philosophy, Observations, Censures and Confutations of Notorious Errours in the 12, 13, and 14 Chapters of Mr Hobs his Leviathan under the name William Pyke, Christophilus. The pseudonym was no doubt to protect himself against further attack from the civil powers. Substantially revised and enlarged, the book was republished in 1663 under Lucy's own name, with the title Observations, Censures and Confutations of Notorious Errours in Mr Hobbes his Leviathan and other his Books, together with Occasional Animadversions on some Writings of the Socinians and such Hœreticks; of the same opinion with him.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.