The newlyweds arrived to St. James' Palace in style on Monday.
England's littlest prince was christened by the Archbishop of Canterbury at the same chapel where his older siblings were christened.
The tiny royal is set to be christening on Monday.
The royals attended the Order of the Thistle Service at St. Giles' Cathedral in Edinburgh, Scotland, on Friday.
A royal source tells ET that Markle is due back to cheer on her friend at this year's tournament, most likely sometime next week.
The oil sketches by artist Nicky Philipps were preparatory works for the princes' first official double portrait.
The Duchess of Sussex was also joined at the event by Serena Williams.
The supermodel was completely charmed by the 36-year-old royal.
The Duke of Cambridge visited an ancient city in Jordan, where his wife once lived as a child.
The British royal embarked on a five-day tour of Middle Eastern countries as a part of an outreach effort.
The Duke of Cambridge celebrated his 36th birthday on Thursday charitably - opening a center for injured service members.
The Duke of Cambridge celebrated his 36th birthday on Thursday.
Kensington Palace announced that the royal couple's third child will be christened next month.
The third child of the Duke and Duchess of Cambridge will be christened in July.
