King Charles follows in Meghan Markle's footsteps with £250 business move

The "Highgrove Royal Gardens Single Malt" is being sold as part of a limited edition of 400 bottles.

It is the most expensive whisky being sold by the estate, with the next one costing just £130.

Each is numbered and comes in a gift box featuring a watercolour by His Majesty of the residence near Tetbury, Gloucestershire.

It is understood to feature a vanilla and orange peel nose, a hint of candied ginger and a lightly spiced finish.

This comes a few months after the King's daughter-in-law, Meghan Markle, was also flogging products for her new lifestyle brand, American Riviera Orchard (ARO).

The Duchess of Sussex, 43, sent jars of homemade strawberry jam to 50 of her friends, who subsequently posted pictures on their social media pages.

Each jar of ARO jam was numbered, just like the King's whisky, and came delivered in a basket of lemons.

King Charles's whisky is made by the Cotswolds Distillery in Stourton, Shipston-on-Stour, just across the county border in Warwickshire.

It is aged in premium active ex-red wine and first-fill bourbon casks at the distillery, the only one in the Cotswolds Area of Outstanding Natural Beauty.

It uses heritage Plumage Archer barley grown at the Highgrove Estate and traditionally floor-malted at Britain’s oldest working maltings.

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The maltings, in Warminster, Wiltshire, is where the barley was first created in 1906.

The use of Plumage Archer “yields a subtle but unique twist” on the spirit, according to the royal estate, which the King rents from the Duchy of Cornwall, now controlled by his eldest son and heir, Prince William.

The estate shop offers a range of whisky and gin, often trading on their locally sourced credentials.