Queen Elizabeth II turns 80 on April 21. In her 54 years on the throne, Her Majesty has presided over the emergence of a diverse and modern Britain, seen her family become tabloid fodder and declined all interview requests. Her third child, Prince Andrew, 46, a former Royal Navy pilot, sat with TIME's Catherine Mayer and J.F.O. McAllister at Buckingham Palace to discuss his mother's job, her love of horses and the time a footman pulled a chair out from under her.
How would you describe your mother's job? Is it a job, a role, a life, a vocation?