Prince Andrew, Prince Charles
Pictured: Princes Andrew, Charles attend the Order of the Garter Service at St George's Chapel in Windsor Castle on June 15, 2015 in Windsor, England. Getty Images/Peter Nicholls-WPA Pool

Prince Charles previously thought that Prince Andrew wanted to be like him and this caused tension between the siblings. However, a royal expert said that this may not have really been the case.

In the article she wrote for the Daily Telegraph, Linda Blair explained how sibling rivalries work and said that they usually take place when the siblings are very much alike or if they are close in age and if they are the same gender. However, sibling rivalry may also be much less among those that are farther in age or are at least four years apart.

“When the age gap between two siblings reaches double figures, as is true for Charles and Andrew (there are over 11 years between them), the sibling relationship usually takes on quite a different quality. The pair are less likely to become equal companions and more likely to adopt a looked up to/looked after, caring/cared for the relationship,” she explained.

Prince Charles and Prince Andrew’s huge age gap also suggests that it is likely that one of them would wish to be the other. Additionally, Prince Andrew could also be seen as the second first-born so he may simply adopt characteristics of a first-born.

“First-borns tend to be more competitive, so the chances of rivalry here, of a second first-born wanting to assume the position of head of the family, becomes more likely. This, for me anyway, would explain why Andrew might want to be like his elder brother, much more so than because he’s been continuously moved down the monarchy’s pecking order,” she said.

Blair also argued that Prince Andrew wanting to be like Prince Charles, as the future King claimed, does not mean that he wants to have the same power and responsibility as his older brother. After all, sibling rivalry is more about the process than the state and more about enjoying attention than being given a particular role.