Prince Harry has given Prince William 'thorn in flesh' with attacks

Prince Harry's memoir titled 'Spare' is a source of concern for Prince William.

A source close to the Prince of Wales reveals that the father-of-three is disappointed in his brother trying to air his dirty laundry.

They told US Weekly: "The docuseries is a thorn in the flesh for William. He's disappointed with Harry for portraying him and the family in a cynical light.

"William was hoping they could move on after the 'CBS' interview, but Harry airing his dirty laundry has only heightened the conflict between the two brothers and resulted in them taking a step backwards."

The insider added: "William isn't planning to give his side of the story or openly retaliate. He's remaining dignified and is getting on with the job.