The royal was spotted with two of his longtime pals watching their favorite soccer team Aston Villa in a high-pressure match.

Prince George, who turned five shortly after his little brother's arrival, started school at Thomas's Battersea in 2017. Add in a rambunctious 1-year-old plus the idea of bringing three very young children on a long-haul flight, and anyone can understand why the couple chose to leave the kids at home.

Princess Kate stayed home with Prince George, Princess Charlotte and Prince Louis as Prince William left the UK. The Prince of Wales, 42, travelled to Monaco without his wife and three children to watch his beloved Aston Villa lose 1-0 to the hosts.

The future King was spotted cheering on Aston Villa in Monaco on Tuesday - and he was joined by one of his very best friends since childhood, Thomas van Straubenzee

Prince George and Princess Charlotte were taken on overseas royal visits before their parents stopped the practice after Prince Louis was born. Future King George, 11, joined Prince William and Princess Kate during three tours while his younger sister,

William and Thomas are known to be extremely close friends, with the Wales family even making Thomas godfather to their daughter, Princess Charlotte. Princes William and Harry have known Thomas and his brother,

Earlier today, Prince William had an official royal engagement in London, in which he visited homelessness charity Centrepoint. Just hours after his public appearance, the Prince of Wales jetted off to Monaco where he was photographed watching his favorite soccer team, Aston Villa, compete in the UEFA Champions League.

The Prince of Wales made a surprise appearance in Monaco on Tuesday, where he was spotted watching Aston Villa play in the Champions League with one of his closest friends and Princess Charlotte's godfather,