Tywysog Dorian ap Llywelyn Cymru (Prince Dorian son of Llywelyn of Britain) is the eldest son of Llywelyn, King of Britons. Tywysog Dorian is currently 20 years old. At the age of 9 he became the world record holder for youngest solo bungee jumper. A record which he currently still holds.
He has trained martial arts with his father since he was six years old. His hobbies include surfing, snowboarding, martial arts, and skydiving. Dywysog Dorian also enjoys international travel and spending time with his friends. He is a Cymraeg learner.
Despite being the eldest son, the British law of gavelkind does not follow male primogeniture and so it is uncertain which son will succeed Llywelyn. The next King of Britons will likely be named in the life of Llywelyn, when he retires from the position and names his edling, or heir. For the time being Prince Dorian has been given the title of etifedd (edling or heir in the Ancient British language).