Prince William sparked controversy at Buckingham Palace following his trip with Prince George to watch Aston Villa earlier this month.

Axar.az reports, citing The Mirror, that the Prince of Wales breached longstanding royal protocol by flying with his son to the fixture in Barcelona.

The future King, William, has maintained a lifelong passion for the Midlands side, having backed them since attending Eton College in the late 1990s.

He consciously chose a traditional mid-table outfit that would deliver "emotional rollercoaster moments" and felt drawn to the coincidence of his 1982 birth year - when Villa clinched the European Cup. Among his earliest experiences was the 2000 FA Cup semi-final, where he blended in anonymously with fellow fans at Wembley.

Since that time, he has witnessed numerous Villa fixtures and was there earlier this year when they secured the Europa League trophy in Istanbul. Young George seems to have inherited the enthusiasm as well.