</a><p>Prince Harry and Meghan Markle's Southern Africa tour</a> just keeps getting cuter by the day! After the couple's son, Archie Mountbatten-Windsor, finally made his adorable royal debut</a> in Cape Town on Wednesday, the Duchess of Sussex revealed her precious nickname for the 4-month-old tot. In an Instagram Stories video shared on the Sussex Royal account</a>, Meghan is heard calling her son "Bubba" as they step out to meet South African human rights activist Archbishop Desmond Tutu.</p><br /><p>Baby Archie came into the world</a> on May 6, and the 10-day trip marks the trio's first tour as a family. The purpose of the trip is to highlight causes that are important to Harry and Meghan</a>, as well as Harry's late mother, Princess Diana</a>. It will also include stops in South Africa, Botswana, Angola, and Malawi.</p><br /> <p>Related: Meghan and Harry Are Handing Out Free Hugs in Southern Africa</a></p>
