Lord Hazlerigg, Patron of the Naseby Battlefield Project, hosted the evening on September 12 that was attended by more than 100 distinguished guests from around the county.

Lord Hazlerigg said: “Thanks to the generosity of Lord and Lady Spencer allowing The Naseby Battlefield Project to invite 120 guests to dinner at

Althorp we have managed to raise over £6,000 for the charity.

“This will help us to continue to raise awareness of the Battle of Naseby as one of the most important battles fought on British soil that formed the constitution of the Parliament we have today.”

Earl Spencer, joint Patron of the Naseby Battlefield Project, who donated the use of Althorp for this particular event, said the Battle of Naseby was “the most important battle fought on English soil in over 900 years.”

He said: “It saw the end of the Royalist army as a fighting force, and helped to bring forward the cause of democracy as we know it today.

“I think it’s a national disgrace that we don’t have a memorial there, at Naseby, to remind people of this great moment in our history.

“In America they have stunning facilities at Gettysburg – the key battle in their civil war – which is visited by 1.8 million people per year. I’m delighted to give Althorp as a venue for the Naseby Battlefield Trust, so they can continue their campaign for an appropriate memorial to be in place – whether that be in Naseby church, or – one day – something altogether more dramatic.”

Charles, ninth Earl Spencer, released his new book, Killers of The King, published by Bloomsbury on September 11. The book tells the stories of the men who signed the death warrant of Charles I, a Spencer ancestor.