Complex sentence: On December 11 1786, Couthon was initiated as a Freemason at the Lodge "Saint Maurice" in Clermont, and in 1787, he became a member of the provincial assembly of Auvergne.
Split into simpler sentences: On December 11 1786, Couthon was initiated as a Freemason at the Lodge "Saint Maurice" in Clermont. In 1787, he became a member of the provincial assembly of Auvergne.