Lady Helen Taylor knows all about discretion. As a member of the extended Royal Family, one who has been brought up by two people who seem to be the epitome of of old-fashioned royalty, she has never really had the chance to rebel. She has certainly got this far without terribly embarrassing her parents or relations. She may have had a little wobble in her late teens and early twenties. She did once steal her cousin, Lady Sarah Armstrong-Jones's (now Lady Sarah Chatto) boyfriend, impressionist artdealer Gerard Faggionato - 'Oh, all forgotten now,' she says - and date what seemed to be a string of men. 'Well,' she says, 'I'd been at boarding school. I was at St Mary's, Wantage, a girls' school, for ages. It was a trifle stifling and there were no boys. Every time a brother came to the school to pick his sister up, we'd be hanging out of the window screaming, "A boy! A boy!î'