Admiral Jacob van Wassenaer Obdam (1610-1665) was a Dutch Admiral during the First and Second Anglo-Dutch Wars. A gentleman amateur and cautious tactician he presided over the Battle of Lowestoft (against the English fleet) in June 1665 which proved to be the worst naval defeat in Dutch history. The fault was not entirely his as the fleet was woefully underprepared (which he knew full well) however his direct orders were to attack at all costs.

Hendrick Jacobsz Dubbels (1621-1707) was a maritime painter during the Dutch Golden Age. He was born into a family of Amsterdam jewellers and sometime in the late 1630s was apprenticed to Abraham de Verwer (1585-1650). He was described as a painter at his first marriage in 1651. In the late 1650s he was joined by Ludolf Bakhuizen (1630-1708) as a pupil and the two painters worked together until at least the mid 1660s.They both became members of the Amsterdam Guild. Dubbels also worked for Willem van de Velde the Elder (1610/11-1693) and his son Willem II (1633-1707) until they left for London in 1672. Works by Dubbels are held in the collections of the National Gallery, the National Maritime Museum at Greenwich, and the Louvre.