Buckingham Palace beekeepers were photographed hard at work to mark World Bee Day.
The Queen is also a keen beekeeper and keeps bees at Raymill, her six-bedroom retreat in Lacock, Wiltshire, 17 miles from King’s Highgrove home.
On a visit to Launceston, Cornwall last summer, Camilla met honey farmers selling jars in the town square and told them she was an active beekeeper and had no lost only one colony during the previous winter.
The honey produced by Camilla’s bees is sold at Fortnum & Mason to raise money for charity.
This year’s recipient is Nigeria’s first sexual assault referral centre, which the Queen supports as a patron.
She is also president of Bees for Development, a charity that trains beekeepers and protects bee habitats in more than 50 countries.
Buckingham Palace houses four hives on an island in a lake in the garden and two hives in the garden of Clarence House.
The hives produced more than 300 jars of honey for the palace kitchens last year, and it was often served in honey madeleines, as a filling for chocolate truffles or in a honey and cream sponge cake.