Snow admits to having some conflicting emotions when researching his great-great-grandfather. “He was a notorious womaniser, whose long-running relationship with his young secretary meant that he almost had two wives. I’m descended from one of Lloyd George’s daughters, so this other side of his life has always been a bit of a family secret, something we never talked about.”

The documentary sees Snow traveling to north Wales, Westminster and the Palace of Versailles, where Lloyd George represented Great Britain at the Paris Peace Conference in 1919. On the programme, Snow admits that finding out about some his ancestor's escapades was distressing, including his array of affairs which resulted in an aborted love-child.

Snow said: “I think the most remarkable aspect of the Lloyd George story is that this was a guy without money, without an army background who rose up to become Prime Minister of Britain at a time when the British Empire extended right around the world."

The new documentary Dan Snow on Lloyd George - My Great-Great Grandfather, will be shown on December 7th on BBC One Wales at 9pm.