He says Meghan felt the argument wasn’t her fault and was perplexed by his sister-in-law’s response,as Meghan spoke to her own friends in that manner.

The book also repeats Meghan’s claim (made previously to Oprah Winfrey) that Catherine made Meghan cry over an argument about Princess Charlotte’s bridesmaid’s dress,despite the British press reporting it the other way around at the time.

The argument was over the dress not fitting Charlotte properly and Catherine demanding it be remade,with just four days to go until the wedding day.

Harry reportedly claims Catherine then resisted taking Charlotte to see Meghan’s tailor,who had been waiting since 8am.

He found Meghan on the floor of their home crying after she learnt her estranged father had suffered a heart attack. He says Catherine apologised for making Meghan cry.

The details of the row underline how dramatically the two brothers have fallen out since Harry’s engagement to Meghan,when they were originally billed as the “fab four” – a team who could represent a modern and revived face of the British monarchy.

Harry has said his brotherknocked him to the ground in an argument they had about Meghan when William complained that she was rude and abrasive.

In a series of media interviews to promote his book,worth tens of millions of dollars,Harry has also said he would like to restore his relationship with his brother and father,but that the ongoing deterioration in their relationship was their fault.

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