Complex sentence: In his first term, he had an important role enmity between him and the Franciscan Friar Andrés Varo, as the two men wrote many letters to the viceroy in which they complained about the conduct of the governor.
Split into simpler sentences: In his first term, he had an important role enmity between him and the Franciscan Friar, Andrés Varo. The two men wrote many letters to the viceroy, complaining about the conduct of the governor.