Complex sentence: William Pope DuVal (September 4,1784--March 19,1854) was the first governor of Florida Territory, serving from April 17,1822 until April 24,1834.
Split into simpler sentences: William Pope DuVal (September 4,1784--March 19,1854) was the first governor of the territory of Florida. He served as governor from April 17,1822 until April 24,1834.