Complex sentence: Born at Rome, he was graduated in 1617, studied under the botanist Andrea Cesalpino (1519-1603), and was professor at Rome from 1597 to 1634, when he went to Messina.
Split into simpler sentences: Born at Rome, he was graduated in 1617 and studied under the botanist Andrea Cesalpino (1519-1603). He was professor at Rome from 1597 until 1634, when he went to Messina.