Aunt Pippa has arrived!
Prince William and Kate Middleton's newborn son received one of his first official visitors: Aunt Pippa Middleton
Kate's younger sister, who is said to be expecting her first child with husband James Matthews, arrived at Kensington Palace to attend her meet new nephew on Tuesday – just a day after the birth of the prince.
Pippa wore a pink coat and an oversized pink turtleneck and was one of the first family members to hit the newborn. Uncle Prince Harry and Meghan Markle, who live just a stone's throw from the royal family of five, are also expected to be one of the first to meet the new prince.
Prince Charles joked that he was having trouble with all of his Grandchildren will, according to reports, will visit his new grandson after him return from Anzac Day commemoration in France on Wednesday.
Queen Elizabeth celebrated the latest addition to her family with a short horseback ride through the grounds of Windsor Castle, where she stays with husband Prince Philip, who is still recovering from hip surgery
RELATED VIDEO: Pippa Middleton Reportedly pregnant with her first child – at the same time as Sister Kate!
Pippa's pregnancy news broke on Saturday, just days before Kate was admitted to work with her third child on Monday morning at St. Mary's Hospital in London in the early stages.
Pippa and her husband knotted last year on May 20 at St. Mark's Church in Englefield. Prince George and Princess Charlotte were a delightful pagenboy and a little bridesmaid in their wedding party. Now she has a new little nephew to share her milestones.
A mother of three, Kate has lots of wise advice (and designer maternity wear!) To pass on to her younger sister
A source previously said that Middleton and Matthews are looking forward to it to settle down and have "children and lead a quiet life."
The name of Wills and Kate's Baby Boys will be announced in due course. the palace said. Albert and Arthur are tied as the most popular names for a boy – at 5-1 and 9-1, according to British ottsmakers.
The royal baby remains fifth in the series after Prince Charles, Prince William, Prince George and Princess Charlotte.