His mother was Elizabeth Blount .
The first creation of a dukedom of Richmond ( as Duke of Richmond and Somerset ) was made in 1525 for Henry FitzRoy , an illegitimate son of King Henry VIII .
Duke 's mother was Elizabeth Blount .
The first creation of a dukedom of Richmond ( as Duke of Richmond and Somerset ) was made in 1525 for Henry FitzRoy , an illegitimate son of King Henry VIII .