Prince William’s ex-girlfriend Kate Middleton blames William’s father Prince Charles for the couple’s break-up.

The brunette works at UK fashion chain Jigsaw and blurted the reason for the split to worried work colleagues, saying, “It’s because of his daddy.”

Charles is said to have advised his son to ditch his girlfriend unless he planned to marry her, to avoid the mistakes he made with Diana.

Jigsaw co-worker Philip Higgs tattles to the British rags: “Normally, Kate doesn’t talk about anything. She’s very quiet. But it was as if she’d reached boiling point from one sympathetic question too many.”