The annual family gathering. You’re wedged into the sofa next to  the dreaded Aunt Marjorie, who is shovelling vol-au-vents into her mouth.

“Did you know that Uncle Bunty was related to Auntie Fenella, whose sister was married to your cousin Monty, who ended up living with your grandfather?”

When it comes to family matters, ignorance is sometimes bliss.

Then again, some family trees have style to spare. Take the Lonsdale clan; heir apparent Chloe Lonsdale has just launched a new denim label, Made in Heaven. Her godfather created the brand in 1969 and it became an instant best-seller in her father Tony’s cult denim chain, Jean Machine.

Now it’s back, and there’s no shortage of new styles to choose from. The London Jean is the ultimate city-girl, skinny, low-rise boot-cut. Fancy something a bit flashier? The Monaco Jean comes with a snazzy, go-faster denim pinstripe — unbelievably flattering on the leg and fab with a Grand Prix T-shirt. (Made in Heaven also does cotton shirts and tees). The website shows full-length shots of each, complete with that all-important decider: the rear view.

If the Lonsdales prove anything, it’s that jean genius is in the genes.

No matter what shape of bottom you inherited from Aunt Marjorie.

Available at Harrods, Knightsbridge, SW1 (020 7730 1234 or harrods.com). To see styles, go to madeinheaven.co.uk.