Possible Clues:

• Royal family died in revolutionary battle
• Bloody Mary's last name
• Do get in the rut up here for this House
• Style of King Herod utterly regressive
• Style for many a Hyde Park home
• Royal house of Henry VIII
• Trollope's clerk with royal connections?
• Henry VIII, e.g.
• House of Henry VII and Henry VIII
• Soldiers led by boss beheaded member of dynasty