Complex sentence: Fromentin was a member of the territorial house of representatives from 1807 to 1811, and was part of the constitutional convention that developed Louisiana's state constitution when it became a state in 1812.
Split into simpler sentences: Fromentin was a member of the territorial house of representatives from 1807 to 1811. He was part of the constitutional convention that developed Louisiana's state constitution when it became a state in 1812.