The author of an explosive new book has revealed how he uncovered Prince Andrew and Sarah Ferguson‘s darkest secrets.

In an exclusive interview in the latest edition of the Daily Mail’s royal newsletter Palace Confidential, Andrew Lownie, author of Entitled: The Rise and Fall of the House of York, said he contacted over 3,000 former school contemporaries, staff, colleagues and associates of the couple.

‘Of whom 300 spoke to me,’ Mr Lownie said. ‘Some on the record but most off.

‘They felt it was time to challenge the York family’s carefully curated narrative.

‘It is difficult because there tends to be a code of silence about the royals (no one wants to be cast out of the privileged circle).

‘Additionally, their staff have to sign NDAs, royals are not fully subject to the Freedom of Information Act and there are strict limits on what questions MPs can ask about them in Parliament.

‘I could also add the letters I received threatening to sue me, before a word of the manuscript had been seen. Charming people.’

From Prince Andrew’s peculiar sexual habits to Sarah Ferguson’s friendship with convicted paedophile Jeffrey Epstein, Mr Lownie uncovered a long list of the York family’s secrets.

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Andrew Lownie, historian and author of Entitled: The Rise and Fall of the House of York

‘I would keep the whole York family at a distance,’ Mr Lownie warned. ‘Fergie should not be invited to events and the daughters should not be made working royals.

‘I believe there are more scandals to emerge.’

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