Complex sentence: In the 16th century, the monastery was dissolved and a Comenda of the Order of Christ was created, its first Comendador was the Noble Knight Tomé de Sousa, who John III of Portugal made Governor of Brazil.
Split into simpler sentences: In the 16th century, the monastery was dissolved and a Comenda of the Order of Christ was created. Its first Comendador was the Noble Knight Tomé de Sousa, who John III of Portugal made Governor of Brazil.