Princess Isabella, in real life, does marry Edward II of England in 1308. She was only 12 at the time. Edward II's father was King Edward I also known as Longshanks. It was Edward I that William Wallace fought against and who also executed William Wallace in 1305.

Isabella's Civil War with husband Edward II - and the rise of her son Edward III - was depicted in the TV Series World Without End (2012) (based on the Ken Follett novel) - which also starred Tom Cullen, as landless serf Wulfric.

In the first season, Isabella is depicted as a teenager during the period her parents are seeking a wedding match for her. In reality, Queen Joan died when Isabella was only ten years old and Isabella was married to the future King Edward II by the time she was 12.

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