AceShowbiz - Pippa Middleton and James Matthews have been parents for almost a month, but their baby's name has just been revealed now. According to Mail on Sunday which claims to have obtained the birth certificate, the couple named their son Arthur Michael William Matthews, which is a tribute to her father and his late brother.

The baby's middle name Michael is believed to be taken after Pippa's father Michael Middleton as well as an homage to James' younger brother Michael Matthews, who died in 1999 at the age of 22 while climbing Mount Everest.

Pippa and James' son shares his first name with his cousin, Kate Middleton's third child Prince Louis, who has Arthur as his second name. It is also the middle name of Louis' father Prince William as well as his grandfather Prince Charles.

Pippa and James, who wed on May 20, 2017, welcomed their first child October 15 at the private Lindo Wing at St. Mary's Hospital in London, the same maternity ward where her sister Kate gave birth to her three children, Prince George, Princess Charlotte and Prince Louis. "Everyone is delighted and mother and baby are doing well," a representative for the 35-year-old socialite and author confirmed the happy news at the time.

The baby's arrival made Kate, the eldest of three Middleton children, a first-time aunt. Reacting to the happy news, Kensington Palace said in a statement on behalf of the Duke and Duchess of Cambridge, "The Duke and Duchess of Cambridge are thrilled for Pippa and James."

Pippa and James were spotted taking their newborn son on a stroll in London on October 21 while also taking their two dogs, a Cocker Spaniel named Rafa and a Labrador, for a walk. Pippa was holding onto her husband's arm, while holding one of their dogs' leash with her other hand. Meanwhile, her businessman husband pushed their baby in a stroller on the Chelsea streets.