Prince William's land grab in Great Windsor Park has been slammed by campaigners as an abuse of power.

It was recently announced 60 hectares (150 acres) of the park are being closed to the public to keep people away from William's new home.

The 2.3 mile perimeter cordon closes land that has been publicly available for decades. Great Windsor Park is public property, owned by the state and managed by Crown Estate.

Speaking for Republic Graham Smith said today:

"This is public land, why is it being closed to the public just so William can have his fourth home there? The park, the homes, the castle, it all belongs to the state."

"We will be writing to MPs and the government demanding answers."

"This is an abuse of the Serious Organised Crime and Police Act to enforce an exclusion zone to pander to William."

"William already has privacy, he already enjoys more secrecy than MI5, he has all the privileges and luxuries he could want, at huge cost to the taxpayer."

"We pay him £23m a year, give him four huge palatial homes, status and rank he hasn't earned, all in exchange for a paltry number of engagements."

"Yet that's not enough for William. He always wants and expects more. His demands for secrecy and land are an appalling abuse of power and privilege."