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The King of Spain's shock abdication has led to much discussion about his love life but he is far from the only famous man to have 'put himself about a bit'.
Ruling a nation was never an obstacle for King Juan Carlos's lustful endeavors.
Indeed, as Spain takes in the 76-year-old's shock abdication, the former king's conquests are being as widely discussed as his other scandals, including posing with a dead elephant he'd just hunted.
Just like his namesake, the great Don Juan, the royal is said to have bedded more than 1,500 women - including rumours he slept with Princess Diana.
And he's not the only infamously prolific lover. These other well known Lotharios are know for their penchant for a roll in the hay...
Bill Roache
As Ken Barlow he's bedded a few women but his Coronation Street fictional alter-ego has nothing on Bill Roache himself.
When asked, the 82-year-old initially admitted sleeping with “more than 100” women but when he was pushed about whether the real figure was nearer 1,000 he replied: “Well, I’m not denying it.”
Russell Brand
This funnyman seems to have taken the idea of laughing women into bed and run with it.
The 38-year-old well-known lady-lover has been coy about how many women exactly he's slept with, although when asked if it matched Bill Wyman's 1,000 he said: “I'm well up from there.
“Oh God, at the peak it would be around five a day. One in the morning, maybe two for lunch and three for tea. A good week would be at least 20.”
Fidel Castro
The Cuban revolutionary leader, 87, has slept with more than 35,000 women during his years at the top.
According to a former Castro official, he "slept with two women a day for more than four decades. One for lunch and one for supper. Sometimes he even ordered one for breakfast".
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So that would average out at about two sexual partners a day for five decades.
Hugh Hefner
It's not a great surprise the founder of Playboy would have a few notches in his bedpost. And the 88-year-old has slept with A LOT of women – so many he's lost count.
“I stopped counting a long time ago,” he said.
Estimates vary from 2,000 to 5,000 women. “I've never thought in terms of quantity, but more in terms of quality,” he added.
Gene Simmons
The Kiss singer, 64, allegedly slept with 4,600 women- but he hit back at these claims by saying: "I haven't slept with 4,600 women, it's 4,800".
The number that he works to now is apparently 4,897.
He told TV Guide: "a lot of them didn't get a lot of sleep". He also offers his advice to single men would be to "never lie" to women.
Charlie Sheen
The former Two And a Half men star, 48, estimates to have slept with 5,000 partners - but he does admit paying for some of it.
Charlie has been divorced three times, his most recent marriage ending in 2010.
Contrary to these figures, however, Sheen describes himself as "shy, introverted and mellow".
Julio Iglesias
Julio Iglesias had an alleged figure of sleeping with 3,000 women attached to him.
However, the 70-year-old crooner claimed that the number was inaccurate- saying that "now we are in 2014, the number must be up to 20,000!"
The Spanish singer says that he doesn't keep count, claiming "I respect women very much. I learn from women, I adore women".
Simon Cowell
The 54-year-old music mogul claims he has had 2,000 partners.
He told the Daily Star that "good times" ran through the 80s and 90s where he had two women a week, causing him to rack up his number.
He pointed out, however, that he was "not as bad as Russell Brand".