Complex sentence: Their output follows the International Gothic style and begins approximately with Robert Campin and Jan van Eyck in the early 1420s, and last at least until the death of Gerard David in 1523 or to the start of the Dutch Revolt in 1566 or 1568.
Split into simpler sentences: Their output follows the International Gothic style and begins approximately with Robert Campin and Jan van Eyck in the early 1420s. It lasts at least until the death of Gerard David in 1523 or to the start of the Dutch Revolt in 1566 or 1568.