Pieter Hasselaer

Hasselaar (Haarlem, 1554–Amsterdam, August 1616) was an Amsterdam brewer and schepen (alderman), and one of the founders of the Dutch East India Company.

He is famous, along with his aunt Kenau Simonsdochter Hasselaer, for courageous actions during the siege of Haarlem in 1573.

He bought maps, books and stationery for Willem Barents, who would sail to Nova Zembla.

The brewery went over to his son Nicolaes, and after he died, to his daughter Balichgen and son-in-law Peter Everstz Hulst, known for his portrait in 1639 by Bartholomeus van der Helst.

Together with Albert Burgh, Andries Bicker and Abraham Boom, Hasselaer received Marie de Medici.