Like the Prince of Wales ,Mr Van Cutsem was a keen conservationist and owned a 4,400-acre estate on Norfolk’s Brecklands where the family live.
Estate workers turned up in their country attire for the funeral today which was held amid tight security.
Mr Van Custem leaves behind his wife of 42 years Emilio and four sons, Edward, 40, Hugh, 39, Nicholas, 36, and William, 33. One is likely to be a godfather to royal baby Prince George.
Edward was a pageboy at the wedding of Charles and Lady Diana Spencer in 1981, while the Queen and Duke of Edinburgh attended the 2004 wedding of son Ed to Lady Tamara Grosvenor.
Mr Van Cutsem’s five-year-old granddaughter was a bridesmaid at the Royal wedding in 2011, catching the attention of the public when she appeared on the Buckingham Palace balcony covering her ears.