Revealing mistake: In Episode 2 during the scene when the king's son is born, it appears that the baby has been born for less than a few minutes, but when he is held up it is plain to see that his navel has healed instead of being freshly cut As It Should Be after the birth. (00:31:50)
Revealing mistake: The king arrives to see his first son. As the king gets off his horse and is greeted by a foot solider, you can see modern grey fencing behind him with green shrubbery growing around it.
Revealing mistake: In the scene where the King's sister is throwing things at Charles in rage, she says "don't call me wife" and hurls a goblet at him and it hits the window behind him. A sound of breaking glass is heard, yet you can see the plastic 'window' flap and the 'glass' stays in tact. (00:38:50)
Revealing mistake: In the scene where the king and his entourage are walking through the crowd, someone in the crowd (right side) is wearing a watch on his left hand while applauding.
Revealing mistake: During her wake, Jane Seymour is supposedly dead, but she is breathing. (00:48:05)
Answer: While Harry can be a given name, it is also a standard "informal" version of the name Henry. For example, in the UK Royal Family, the younger son of Prince Charles, officially named Prince Henry, is commonly referred to as Prince Harry.
Tailkinker ★