Brief Biography-Jan Mostaert of Haarlem may have been a pupil of Geertgen tot Sint Jans, and there is a strong influence of Geertgen in his work. However, old accounts state Jacob Janszen of Haarlem as his true master. Margaret of Austria, Regent of the Netherlands, sister to Philip I, King of Spain, engaged him as her painter. She took him as a portraitist on her journeys, principally for her subjects and nobility. She retained him in her service for eighteen years. Yet, despite his travels, he maintained his Dutch style of painting. However, he produced pictures of foreign lands, which he could only have learned through literature and illustrations. His landscape of the West Indies is his most noted one in the Frans Hals Museum, Haarlem. The Great Fire of Haarlem in 1576 consumed most of his paintings. He is also known as Master of Oultremont and is sometimes confused with Waagen’sche Mostaert or Adriaen Isenbrant.