A royal donor who tried to sell access to Prince William for more than $40,000 has been cut loose, according to reports.

Minerva Mondejar Steiner, a Filipina-Swiss millionaire, offered private meetings with William at the upcoming Royal Charity Polo Cup match in exchange for £20,000 ($41,000), the Sunday Times reported.

Her art gallery — the Mondejar Gallery — was an official sponsor of the annual charitable polo event, to be held at Windsor later in July.

Kensington Palace declined to comment.

It is understood the palace was unaware of what is being viewed as a rogue sponsor until alerted by the newspaper, and action was taken immediately.

The event organisers were also unaware it was being used by the Mondejar Foundation to raise money, it is believed.

The Mondejar Foundation has been approached for comment.

The Royal Charity Polo Cup match is an exclusive event where charity donors can watch the prince play polo.

Among the guests in 2024 were British TV presenter and interior designer Laurence Llewelyn-Bowen and wife Jackie, who were seen taking a courtesy golf buggy around the site.

The event raised more than a £1 million ($2.1 million) for causes that William and wife Kate are passionate about, including Wales Air Ambulance, Child Bereavement UK, Place2Be, Action for Children and The Royal Marsden.