Short answers, pulled from the story.
Lucas Horenbout arrived in England in the year 1525 to introduce the portrait miniature genre to the Tudor court. His arrival marked the sudden introduction of a new art form that would define the English monarchy for centuries. He came to the court with his father Gerard and sister Susannah to transplant Netherlandish illuminated manuscript techniques into a new political landscape.
Henry VIII paid Lucas Horenbout an annual salary of sixty-two pounds and ten shillings. This sum dwarfed the salaries of his contemporaries and was significantly higher than the thirty pounds per year received by Hans Holbein the Younger. The first documented payment to Horenbout as pictor maker occurred in September 1525.
Lucas Horenbout worked alongside his father Gerard Horenbout and his sister Susannah Horenbout. Gerard served as court painter to Margaret of Austria from 1515 to about 1522 before returning to the Continent. Susannah remained in England and was recorded as married to John Palmer in 1529.
Lucas Horenbout died in London and was buried at Saint Martin in the Fields. His death occurred in the year 1544, leaving behind his wife Margaret and daughter Jacquemine. The studio was unequally divided between his wife and daughter to ensure the Horenbout name remained in the English artistic landscape.
Karel van Mander claimed in the early 17th century that Lucas Horenbout taught Hans Holbein the art of illumination. Modern art historians like John Rowlands contest this narrative, suggesting Holbein followed the techniques of Jean Clouet and the French school instead. Horenbout did create a portrait of Holbein dated 1543 that copies the face from a self-portrait drawing by Holbein.
The Master of the Cast Shadow Workshop was a collective active in the 1520s or 1530s that produced portraits of English monarchs. Art historian Roy Strong has linked Lucas Horenbout to this workshop as the potential driving force behind these panel paintings. The workshop's output includes portraits of kings from the preceding century and is characterized by the use of cast shadows.