Complex sentence: The son of a well-to-do merchant in the textile trade, Six studied liberal arts and law in Leiden in 1634 and became the son-in-law of the mayor of Amsterdam, Nicolaes Tulp in 1655 when he married his daughter Margaretha.
Split into simpler sentences: The son of a well-to-do merchant in the textile trade, Six studied liberal arts and law in Leiden in 1634. He became the son-in-law of the mayor of Amsterdam, Nicolaes Tulp in 1655 when he married his daughter Margaretha.