Peter Martyr Vermigli (1499-1562) was one of the early members of the abortive Italian reform movement as well as one of the formative shapers of Reformed Protestantism. Through its focus on Vermigli, these essays illuminate new dimensions to the various Reformations in sixteenth-century Europe, both Catholic and Protestant. Vermigli's work is considered under three rubrics: his relationship to other Reformers, an analysis of his more provocative theological ideas and his contributions to church reform. Particularly notable is the breadth of his interests, which ranged from his view of women, prophecy and papal power, to the early church fathers and his revision of ecclesiastical laws in the Church of England. Each of these depicts a vital aspect of Vermigli's contribution to the European Reformations.