Complex sentence: In 1573, he became councillor of the Parliament of Brittany, at Rennes, and two years later, he obtained the agreement of Antoinette d'Aubeterre for the marriage of Catherine of Parthenay with the Duke René de Rohan, Françoise's brother.
Split into simpler sentences: In 1573, he became councillor of the Parliament of Brittany, at Rennes. In 1575, he obtained the agreement of Antoinette d'Aubeterre for the marriage of Catherine of Parthenay with the Duke René de Rohan, Françoise's brother.