Complex sentence: In 1516 it was sold to the Bertolini and, in the same century, to the Davanzati family, also rich merchants (1578), who held it until 1838: after the suicide of Carlo Davanzati, it was split into different quarters and modified.
Split into simpler sentences: In 1516 it was sold to the Bartolini and, later that century, to the Davanzati family, also rich merchants (1578), who held it until 1838. After the suicide of Carlo Davanzati, it was split into different quarters and modified.