Jan Gerritsz. Bicker was a general contractor, shipping magnate, mayor (burgomaster) and a member of the Bicker family, influential regenten from Amsterdam.
Jan Bicker
Agneta de Graeff (1603-1656)
Bickerseiland by Reinier Nooms
Keizersgracht 221
Bicker is a very old Dutch patrician family. The family has played an important role during the Dutch Golden Age. They led the Dutch States Party and were at the centre of Amsterdam oligarchy from the beginning of the 17th century until the early 1650s, influencing the government of Holland and the Republic of the United Netherlands. Their wealth was based on commercial transactions, and in their political commitment they mostly opposed the House of Orange.
Dirk Jansz Helmer († 1468) acted as the direct ancestor of the 2nd line, the later female line of the Bicker family
Pieter Meeus Doosz Bicker (1430–1476), father of Machteld Pietersdr Bicker (1455–1526) acting as male progenitor of the upfollowing Bicker family
Andries Bicker (1586-1652), Heer van Engelenburg, painted by Bartholomeus van der Helst (1642), Rijksmuseum Amsterdam
Cornelis Bicker van Swieten (1592-1654), Heer van Swieten, painted by Cornelis van der Voort in 1618