The Windsor Castle greeted the First Lady Michelle Obama and US President Barack Obama on Friday. They joined the celebration of Queen Elizabeth’s 90 birthday. Later during the day, the couple dined with the Duke and the Duchess of Cambridge at their Royal House in Kensington Palace, London.

The highlight of the day was when the elder child of the Duke and Duchess of Cambridge, Prince George stayed up all night, dressed in white robes to meet the Obamas in their royal house. It included a bed-time greeting. The Kensington Palace tweeted the photo of Prince George, 2, sitting in the rocking horse given by Obama on his first birthday.

The toy dog that Obama gave him rested on the lavish coffee table of the palace, E Online! reports. Princess Charlotte, the 11-month-old daughter of the royal couple, seemed to have missed the opportunity as she was fast asleep.

The royal house has 20 rooms including the room for the staff members and the servants. Their drawing room has a photo of Prince William from his college days.

Also Read: ‘NCIS’ Season 14 Filming at White House; Casts Michelle as Herself

During the day, the Obamas were given a ride by 94-year-old Duke of Edinburgh Prince Philip on their arrival to Windsor Castle. The Obamas presented the longest ruling British Monarch with the photos of the Queen meeting the American leaders. Obama, during his meeting with British Prime Minster David Cameron, urged the people of Britain not to vote in favor of leaving the European Union, TIME reports.

Also Read: ‘Worst Mistake As President’: US President Admits He Did Not Plan for Day After in Libya Intervention

Earlier the US president went to Saudi Arabia to re-build the ties between the US and Gulf countries. He is set to visit Germany to strengthen the bond with European allies.