British royal Prince Andrew has reportedly ended his relationship with model Monika Jakisic. The Duke of York, 54, was first linked to George Clooney's ex in February (14), after they were spotted on a dinner date in London, but it now appears the romance has fizzled out after just five months and the couple has split, according to UsMagazine.com. News of the break-up emerges four months after the Prince instructed his representatives to break royal protocol, which dictates that they do not comment on family members' personal lives, to dismiss rumours he had proposed to the Croatian lingerie model after she tweeted a photo of a diamond ring sitting on top of a restaurant bill. She later insisted the snap was a reference to another couple celebrating an engagement. Andrew, who is father to Princesses Beatrice and Eugenie with ex-wife Sarah Ferguson, is already said to have moved on with another model after he was joined by Canadian beauty Dara Tomanovich at a Royal Ascot horseracing event in Berkshire, England last week (ends27Jun14).