thumb|Monument to John Ernest Grabe, [[Westminster Abbey]]
thumb|Grabe's name listed on the south face of the [[Burdett Coutts memorial]]
John Ernest Grabe (10 July 1666 – 3 November 1711), Anglican divine, was born at Königsberg, where his father, Martin Sylvester Grabe, was professor of theology and history.
Life
In his theological studies Grabe succeeded in persuading himself of the schismatical character of the Reformation, and accordingly he presented to the Lutheran consistory of Samland in Prussia a memorial in which he compared the position of the evangelical Protestant churches with that of the Novatians and other ancient schismatics. He had resolved to join the Church of Rome when a commission of Lutheran divines pointed out flaws in his written argument and called his attention to the English Church as apparently possessing that apostolic succession and manifesting that fidelity to ancient institutions which he desired. on 9 November 1711. His name is listed on the Burdett Coutts Memorial as one of the important graves lost. In 1726 a monument by Francis Bird was erected to him by Edward Harley, Earl of Oxford, in Westminster Abbey.
Some account of Grabe's life is given in Robert Nelson's Life of George Bull, and by George Hickes in a discourse prefixed to the pamphlet against William Whiston's Collection of Testimonies against the True Deity of the Son and of the Holy Ghost.
Works
His works, which show him to have been learned and laborious but somewhat deficient in critical acumen, include a Spicilegium SS. Patrum et haereticorum (1698-1699), which was designed to cover the first three centuries of the Christian church, but was not continued beyond the close of the second. A second edition of this work was published in 1714.