Pippa Middleton and James Matthews welcomed a baby son back in October just after Princess Eugenie's wedding but his name was top secret until now.
According to reports, the couple decided on Arthur as a name for their firstborn with the news circulating today.
According to The Mail on Sunday, his full name is thought to be;
Arthur Michael William Matthews
The choice of the name Michael has special significance as James' brother Michael was aged 22 when he disappeared during a Mount Everest expedition.
Michael is also the name of Pippa's father and it's clear that it's a very special name in both families which is why many predicted they would choose it for the baby's first name.
Pippa and James married in May of last year. Their baby news became public knowledge in April 2018.
