Complex sentence: During the years 1552-59 he was the Spanish ambassador in Venice; in 1558 he negotiated at Rome with Paul IV regarding the recognition of Ferdinand I as emperor, and in references to the founding of new dioceses in the Netherlands.
Split into simpler sentences: During the years 1552-59 he was the Spanish ambassador in Venice. In 1558, he negotiated at Rome with Paul IV regarding the recognition of Ferdinand I as emperor, and in references to the founding of new dioceses in the Netherlands.