The couple, who are also parents to Arthur, 3, and Grace 1, named their newborn daughter Rose, PEOPLE has learned.

Pippa Middleton.Chris Jackson - WPA Pool/Getty

LONDON, ENGLAND - JUNE 04: Pippa Middleton during the Platinum Party at the Palace in front of Buckingham Palace on June 04, 2022 in London, England. The Platinum Jubilee of Elizabeth II is being celebrated from June 2 to June 5, 2022, in the UK and Commonwealth to mark the 70th anniversary of the accession of Queen Elizabeth II on 6 February 1952. (Photo by Chris Jackson - WPA Pool/Getty Images)

Lili’s name has an extra layer of meaning since Meghan’s momDoria Raglandlovinglycalled her daughter “Flower.“In a blog post on her now-defunct lifestyle site, The Tig, Meghan shared her nicknames, writing, “Meg, MM, M&M, and Flower (which my mom has called me since I was little).”

Meghan Markle and Prince Harry’s daughter Princess Lilibet.Misan Harriman

Lilibet

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James Matthews and Pippa Middleton attends the wedding of Princess Eugenie of York and Jack Brooksbank at St George’s Chapel on October 12, 2018 in Windsor, England

Rose is the sixth grandchild for Carole and Michael Middleton and another little cousin forPrince George,Princess CharlotteandPrince Louis.

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James Matthews and Pippa Middleton.Arthur Edwards - WPA Pool/Getty

Pippa Middleton and James Matthews after their wedding at St Mark’s Church on May 20, 2017 in Englefield, England

Pippa’s three children can look forward to lots of playdates with their royal cousins in the future. According to a source, Pippa and her family are planning a move to a village near Bucklebury, in Berkshire, where Pippa and her siblings grew up and where their parents still live. Their new home will be about 50 minutes from Windsor — where Kate, William and their three children arerelocating this summer.

A source previously told PEOPLE that Pippa and her husband have been looking forward to settling down and “having children and leading a quiet life.”

source: people.com