Prince Charles and Princess Diana finalized their divorce a year before the latter died due to a car crash. Amid the preparations for the Princess's funeral, alleged tensions were growing between her brother, Charles, 9th Earl Spencer, and Buckingham Palace, particularly the Prince of Wales. A royal author claimed that it was all because the British Royals "hijacked" and made the funeral a royal occasion, according to Page Six.

Writing in his book, Battle of Brothers, Robert Lacey said that Prince Charles, also, made an "offensive" remark about Princess Diana in a phone call with Earl Spencer. The latter even ended up "slamming" the phone after hearing what the royal-born Prince had said.

The upcoming book, which People recently serialized, details the alleged feud between Princess Diana's brother and former husband. Lacey recalled that the Earl was against the Prince of Wales' plan to include Prince William and Prince Harry in the "lengthy procession." He objected to the idea of his nephews walking behind their late Princess's casket.

The royal author continued that Charles Spencer was sure that his sister would be "horrified" that her sons would need to "endure" this kind of ordeal. But, despite sharing his points to the Heir Apparent, the young royals still ended up walking with their father and grandfather during the procession.

Following the publishing of the claims, reports said that the Prince of Wales and the 9th Earl Spencer did not share any comment about the matter. However, Prince Harry had something to say about what happened that day.

The Duke of Sussex opened up about his "trauma" two decades after Princess Diana's death. He seemingly agreed with his uncle's alleged views about them walking in the entirety of the procession. He said that no one should ask any child to participate in that kind of ordeal.

The late Princess's grave is at the Althorp Estate in Northampton, according to Cheat Sheet. It is on a small island, and has since remained off-limits to the public.

There is a memorial site, however, on the grounds. The location allows visitation from people who want to pay their respects.

As for Prince Charles, it remains unclear whether he had already gone to the grave of his former wife after the actual burial. In 2001, though, Earl Spencer called out his former brother-in-law for not visiting the site. He told the Daily Mail that the future King of the United Kingdom has an open invitation, "as he knows," but he has yet to come.