Sir Donald Gosling has reportedly offered Queen Elizabeth II the use of his 75m (246ft) superyacht for next year’s Diamond Jubilee.

He is thought to have made the offer while having lunch with the Queen onboard the Leander in Portsmouth last month.

Co-founder of the UK’s largest private car park operator NCP, Gosling features in the 2010 Sunday Times Rich List and is reputed to be worth an estimated