Kate Middleton is reportedly the unofficial muse of Brazilian designer Daniella Issa Helayel.
Kate, who is the girlfriend of Prince William, has been photographed wearing numerous creations by the designer, and even opted to wear one to the wedding of Peter Phillips earlier this year.
She receives a VIP service from Issa, and is often given complimentary dresses.
A source told The Daily Mail: “Issa is one of Kate’s favourite labels and she is always at its offices choosing dresses. They also courier bag-loads of frocks to her house for her to try on in her own time.
“There is no limit on what she is allowed to take. Kate must have thousands of pounds worth of gifted dresses, Issa is incredibly generous with her.”
Kate is well known for her fashionable yet conservative style and Daniella are said to be delighted at the amount of publicity she is securing the label.
The source added: “Daniella is a very flamboyant and lovely woman and an incredibly sharp business person. She knows the value of having celebrities step out in her label and Kate is very much on Issa’s A-list.”
Although it has been reported Kate – who is rumoured to be keen to embark on a career in fashion – has been offered an ambassadorial role by a London fashion house, Daniella denied she was giving her a job.
Daniella said: “Kate is not an ambassador for Issa. We love it and are very flattered that Kate wears Issa.
“We do have some friends in common, but that’s as far as it goes at the moment. She’s a private client and we never make any comment on our private clients.”
A spokesman for Clarence House declined to comment.