Complex sentence: On August 15,1824, he was named governor of Coahuila and Texas, a position he held until March 15,1826, when he was replaced by Victor Blanco.
Split into simpler sentences: On August 15,1824, he was named governor of Coahuila and Texas. He was governor of Coahuila and Texas until March 15,1826, when he was replaced by Victor Blanco.