It is so lovely to officially meet Pippa Middleton and James Matthews baby Arthur Michael William!
The Mail on Sunday revealed that the baby certificate showed that Middleton, 35, and Matthews, 43, opted for the lavish three-part moniker for their son.
The name Michael plays tribute to James’ brother Michael Matthews, who tragically passed away at age 22 as he climbed Mount Everest in 1999, while Michael is also the name of Pippa’s father.
Prince George, Princess Charlotte and Prince Louis’ first cousin arrived on October 15.

Pippa’s older sister Catherine and brother-in-law, Prince William, said they were “thrilled” for the couple’s new bundle of joy.
Only three days before the baby was born, Pippa and James had been among the 800 guests inside St. George’s Chapel and Windsor Castle for the wedding of Princess Eugenie and Jack Brooksbank.
The couple are still reeling with their wedding afterglow, having tied the knot last May.