Bucer also attempted to reunited Roman Catholics and Protestants. He participated in colloquies between the two in [[Worms]] in 1540 and [[Regensburg]] in 1541.<ref name="Reformation500"/><ref name="Britannica"/> In the latter colloquy, Bucer co-wrote the Regensburg Book with [[Johannes Gropper]], a Roman Catholic theologian.<ref name="Reformation500"/> The book was a compromise between Roman Catholicism and Protestant Christanity.<ref name="Reformation500"/> After [[Holy Roman Emperor]] [[Charles V of Spain|Charles V]] used the book in his attempt to unite the two, Bucer rejected claims that he was trying to do likewise.<ref name="Britannica"/> The book was rejected by both sides, and the attempt at unification failed.<ref name="Britannica"/> | Bucer also attempted to reunited Roman Catholics and Protestants. He participated in colloquies between the two in [[Worms]] in 1540 and [[Regensburg]] in 1541.<ref name="Reformation500"/><ref name="Britannica"/> In the latter colloquy, Bucer co-wrote the Regensburg Book with [[Johannes Gropper]], a Roman Catholic theologian.<ref name="Reformation500"/> The book was a compromise between Roman Catholicism and Protestant Christanity.<ref name="Reformation500"/> After [[Holy Roman Emperor]] [[Charles V of Spain|Charles V]] used the book in his attempt to unite the two, Bucer rejected claims that he was trying to do likewise.<ref name="Britannica"/> The book was rejected by both sides, and the attempt at unification failed.<ref name="Britannica"/> |