Popsugar Celebrity The Royals Royal Baby First Appearance Pictures 2018 Prepare to Melt Over These Precious First Photos of the New Royal Baby! 27 April 2018 by Kelsie Gibson First Published: 23 April 2018 Image Source: Getty The Duke and Duchess of Cambridge are officially parents of three! On April 23, the Duchess of Cambridge gave birth to a baby boy at St. Mary's Hospital in London. Shortly after welcoming their newborn, the royal couple, who are already parents to Prince George and Princess Charlotte, stepped outside the Lindo Wing to debut their newest addition. Wearing a red dress, Kate was all smiles as she held her bundle of joy in her arms. The birth of the new baby marks a historic moment for the royal family. Due to a new succession law that was put in place in March 2015, the royal baby is fifth in line for the throne behind Princess Charlotte. The Succession to the Crown Act made it so that royal baby girls would be able to hold their position in the succession line regardless of whether their younger siblings were boys. Both George and Charlotte were on-hand for big brother and big sister duty as they met their sibling at the hospital. We can't wait to get even more glimpses of their royally adorable family in months to come! Related: Prince William and Kate Middleton's Family Is Just as Sweet as Their Royal Romance Image Source: Getty / BEN STANSALL 1 / 17 Image Source: Getty / BEN STANSALL 2 / 17 Image Source: Getty / BEN STANSALL 3 / 17 Image Source: Getty / Mike Marsland 4 / 17 Image Source: Getty / Mike Marsland 5 / 17 Image Source: Getty / DANIEL LEAL-OLIVAS 6 / 17 Image Source: Getty / DANIEL LEAL-OLIVAS 7 / 17 Image Source: Getty / Karwai Tang 8 / 17 Image Source: Getty / Samir Hussein 9 / 17 Image Source: Getty / Chris Jackson 10 / 17 Image Source: Getty / Karwai Tang 11 / 17 Image Source: Getty / Samir Hussein 12 / 17 Image Source: Getty / Mike Marsland 13 / 17 Image Source: Getty / Samir Hussein 14 / 17 Image Source: Getty / Samir Hussein 15 / 17 Image Source: Getty / Mike Marsland 16 / 17 Image Source: Getty / Samir Hussein 17 / 17 The RoyalsThe British RoyalsPrince WilliamKate Middleton