IN THE unlikely event that he is elected in Cardiff North on May 3, Sir Dai Llewellyn will be the only AM to have been to Eton and the only one to admit to crashing through a floor while attempting to seduce a friend's girlfriend.
Born in Aberdare on April 2 1946, he is the son of showjumper Sir Harry Llewellyn, who won a gold medal at the 1952 Olympics on his horse Foxhunter.
His brother Roddy is a former consort of Princess Margaret and the two men fell out in the 1970s over claims Sir Dai spilled the beans on his brother's private life to the press. The pair are yet to be fully reconciled.
During a lifetime in high society he has dated a string of actresses, aristocrats and It-girls. In 2005 he fell through a bedroom floor and ended up in the cellar after an ill-fated attempt to woo Nettie McGee, the girlfriend of a friend.
"I wish I could tell you this was an isolated incident," he told the Western Mail at the time.
He makes regular appearances in the diary columns of London newspapers and has worn drag among his more outrageous appearances at a fancy dress party.
In the 1970s he was engaged to Beatrice Welles, the daughter of legendary film director Orson Welles. Their tempestuous relationship grew notorious.
Sir Dai told an interviewer, "Our friends stopped inviting us to dinner parties because they considered us a liability. Beatrice had a temper and once punched me unconscious while I was driving along a motorway. Eventually we had a fight to end all fights, drenched each other in brandy, and broke up."
In 1980 he married Vanessa Hubbard, the convent-educated niece of the Duke of Norfolk.
He demonstrated his continuing taste for the high life when he arrived at the wedding, reached out of the car and handed a half-full bottle of champagne to a group of boys. The couple divorced seven years later but insisted they were "the best of friends", adjourning to a nearby club after returning from court.
His decision to stand in the Assembly elections is the culmination of a long-running aversion to the EU and to devolution, and the latest twist in his tempestuous relationship with Wales.
In 1999 he inherited the title of baronetcy from his father, along with a home in Aberbeeg, near Abertillery. In 2002, while "slightly tipsy", he bought six houses in nearby Llanhilleth for £2,000 each, and tried to sell them to young couples for £100 each.
But by the following year he was packing his bags, saying he had been forced out of Wales by rampant nationalism. The traditional Valleys welcome had been replaced by "cold, professional Welshmen", he said, promising only to return across the Severn Bridge for his own funeral.
"This new-found nationalism means we no longer welcome outsiders, and people like myself become targets for thugs and vandals," he said.
"More and more jobs are now handed out on the basis of whether the applicants speak Welsh thus breeding a feeling of exclusivity, a sense of superiority and a dislike of others."
The world according to Sir Dai... - page 2