In June 1489 he succeeded Barthout van Assendelft as landsadvocaat (Grand Pensionary) of the States of Holland.
[3] In 1693 he was succeeded by Barthout van Assendelft, who regained the office for a second term.
Perhaps he was a son of Boudijn Jan Boudijnsz who was called Schepen of Haarlem between 1441 and 1443.
It cannot be said with certainty that his wife Catharina was the mother of his son Baldewinus de Haga, who was born in The Hague around 1470 and died in 1557.
This article about a Dutch lawyer, judge or jurist is a stub.