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==