It became known that the younger sister Kate Middleton Pippa, who first became a mother in mid-October, called the firstborn.

The boy was named Arthur Michael William Matthews - in honor of the family members of his parents, reports the Daily Mail edition.

His second name - Michael - the baby received in honor of his grandfather, Michael Middleton, and younger brother James Matthews, who died in 1999 during the ascent of Everest. Michael Matthews became the youngest Briton who conquered this peak, at that time he was 22 years old..

It is also worth noting that Arthur is one of the names of the 6-month-old son of the dukes of Cambridge, Prince Louis..

Probably this choice of the name of the newly minted parents wanted to emphasize the relationship of the baby with the royal family of Great Britain.

The third name is supposed to be a tribute to Kate's husband, Prince William..

Recall that Pippa’s pregnancy first became known in April, in June she officially confirmed information from insiders. And she gave birth to her first child literally a few hours after Prince Harry and Megan announced their future addition to the family.. However, just before the birth Pippa Middleton appeared at the wedding ceremony of Princess Eugenia.