Prince William and Prince Harry's feud was apparently made worse because of their temper. A royal biographer revealed that the Dukes of Cambridge and Sussex have such "fiery tempers" and "extreme mood swings" that may have worsened their disagreements in the family. 

According to Robert Jobson, who wrote a biography on Prince Charles, Prince William and Harry's tempers are quite impossible to deal with. Their father has had encounters with his sons on several occasions that shocked and challenged him. 

Apparently, this legendary temper was something that the boys got from their mother, Princess Diana. The Princess of Wales was also known to have extreme mood swings, which Prince Charles had to deal with in his short first marriage.  

Prince Harry is apparently more hot-headed than Prince William. However, the Duke of Cambridge will always speak his mind, even to his father's face, if he had something to say. 

But the British press said Prince Harry's temper worsened further after his marriage to Meghan Markle, the Duchess of Sussex. Last January, they called out Prince Harry for being "grumpy, sad and bad-tempered." 

Apparently, they were used to Prince Harry's cheery disposition during his bachelor years.   However, the journalists who often cover the royal family's events said that his behavior and mood shifted in the last two years since his marriage. 

There was one encounter where Prince Harry scowled at one press member during the Sussex royal's tour of Australia. She claimed that she was only congratulating the duchess on her pregnancy but Prince Harry didn't take it well. 

Experts said that Prince Harry has struggled with the royal life even before. Meghan, however, became the catalyst that made him decide to quit the royal limelight. 

Meanwhile, despite reports of the royal brothers' feud, sources said that they are now mending their relationship. According to Daily Mail, Meghan even told some friends that Prince William and Harry are talking more often today, especially amid the coronavirus pandemic.

The royal brothers also got together and had a video conference call with Prince Charles after he learned he was positive for the virus. Reports stated that this made the Prince of Wales really happy as he and his sons joked even while he was feeling sick. 

The last time Prince William and Harry saw each other was on March 9, during the Commonwealth Day service. It would be the last royal event the Duke of Sussex would attend as he goes to the next phase of his life with Meghan in America.