It is 1485: a young nobleman sails to the land of his fathers from exile in France. His mission - to capture the English crown. For the first time, a self-proclaimed Welshman will be king of England. Under the dynasty he founds, Wales becomes united with England. For every generation of Welsh people to come, the consequences are huge. But exactly what it means - for the next 250 years, at least - depends on whether you are a landowner or one of the ordinary people.

• Huw Edwards