Little girls are little girls whatever their birth right.

On today's show Lady Margaret Rhodes, first cousin of the Queen, was telling me what it was like growing up as a playmate of the young princess who would, one day, become Queen. They were all brought up in that upper class but wholesome culture of a jolly good childhood where you started the day by doing chores and writing letters and you spent all afternoon outdoors doing something constructive like weeding the garden or tidying the ivy.

One thing that chimed with me, though, was the game she used to play with the then Princess Elizabeth - they used to play at being horses. Not playing with their horses, but playing AT BEING horses.

Perhaps its something all little girls do - because I too (with a very much more modest upbringing) used to do exactly that, with my horse mad friend Sally. We were both performance horses in the circus. We used to spend our afternoons cantering around an imaginary Big Top, eating imaginary hay and trotting over home-made jumps.

I wonder what Sally is doing now.

It was lovely meeting Lady Margaret Rhodes - a woman who admits she wouldn't be where she is now (living in Windsor Great Park) were it not for the accident of her, and the young princess', births! She's a woman of strong personality, and with a mischievous twinkle still in her eye. She's had a happy marriage and four lovely children. Quite a character.

If you missed my interview - remember you can always listen again!