Prince William and Prince Harry, along with their wives, Kate Middleton and Meghan Markle, are attending a series of royal engagements in the first two weeks of March. Royal observers, however, said that the Cambridges and the Sussexes might clash as one pair steals the spotlight from the other.

Prince Harry and Meghan are coming back to the U.K. to see through their last rounds of joint royal engagements that will culminate in March 9. As of press time, Prince Harry was spotted in Scotland to begin his royal work while Meghan is expected to follow her husband in the next few days.

A royal insider, however, told The Sun that the return of the Duke and Duchess of Sussex could take the spotlight awayfrom Prince William and Kate. The Duke and Duchess of Cambridge are going on very important royal visit to Ireland from March 3 to 5.

But on March 5, Prince Harry and Meghan are also attending the Endeavour Fund Awards in London. The insider said that despite the slight time difference of these events, there is still a "flurry of excitement" building up as the Sussexes haven't been to any royal engagements since January.

There are concerns, however, that Prince Harry and Meghan's royal engagement will overshadow Prince William and Kate's last day in Ireland. Insiders said that this would not have happened had the Sussexes not "bail out of royal life" and announced that they would be stepping down.

The source told the news outlet that Prince William is glad that his brother is back in town. However, the second in line to the throne also apparently wishes that this didn't happen during their trip to Ireland as the coverage will be divided.

Royal staff members are apparently concerned that the clash will be a nightmare, especially for those working for Prince Harry. Apparently, he has a different PR team working for him, who are not familiar with palace protocols.

Meanwhile, Prince Harry and Meghan are attending six confirmed public royal engagements in precisely 11 days while they are in town. They might will also go to some private meetings and functions with the patronages they support.

Prince Harry and Meghan are saying goodbye to their royal life effective March 31. By April, the Sussexes, who will be based in North America for half of the time, will be announcing their next projects and the actual status of their Instagram, Sussex Royal, since they are no longer allowed to use the name.