Kate Reveals Her New Puppy’s Name

The Duke and Duchess of Cambridge

Bauer-Griffin

updated 02/21/2012 AT 10:00 AM ET

originally published 02/21/2012 AT 10:30 AM ET

The Duke and Duchess of Cambridge have a little dog in wolf’s clothing!

The couple’s black cocker spaniel puppy is called Lupo, the Duchess told schoolchildren Tuesday.

Kate revealed her puppy’s name during a watercolor lesson she attended at The Art Room, one of the four charities of which she is a patron.

During the visit, a little boy handed Kate a dog stuffed animal, and she asked whether it had a name. When told there wasn’t one, she suggested to name it after her own pup: Lupo.

The dog – first seen dashing around the couple’s feet as they strolled along a beach in Anglesey, Wales – is about four months old.

A royal source says, “They liked the name. They like the play on the word for wolf.” The Latin word for wolf is lupus.

The name was revealed during a lesson described by Art Room manager manager Lisa Hancock as “delightful.”

Kate, known as “Miss Catherine” in the classroom, wore a denim apron over her patterned Orla Kiely dress for the painting session, and interacted well with the children. “She seemed to have as much fun as the children,” Hancock says. “She had all the right language and was very calm and gentle.”