In 1664 he was chosen one of the directors of the imperial army raised to fight the Turk; and after the peace which followed the Christian victory at St Gotthard in August 1664, he aided the English king Charles II.
From 1701 to 17 21 Collier was employed on his Great Historical, Geographical, Genealogical and Poetical Dictionary, founded on, and partly translated from, Louis Moreri's Dictionnaire historique, and in the compilation and issue of the two volumes folio of his own Ecclesiastical History of Great Britian from the first planting of Christianity to the end of the reign of Charles II.
Peace negotiations were begun with Charles II.
Robert, who had succeeded Charles II.
This charter was confirmed by Charles II.