The Duke of Cambridge and Prince Harry cracked jokes with each other as they made a record-breaking multi-billion-pound deal for charity on a City trading floor.
As the brothers brokered a 25 billion euro (£21bn) trade they bantered back and forth with one another, and Harry ribbed William for being preoccupied with “baby chat”.
The princes were at brokerage firm BGC Partners in London’s Docklands to raise money in memory of people who died in the attacks on New York’s Twin Towers on September 11 2001.
Harry remarked about his brother: “He’s on the phone and it’s all baby chat.”
The royal brothers also met workers from WellChild and SkillForce, as well as people who have benefited from the charities.
Celebrities including singer Rod Stewart, DJ Sara Cox, actor Idris Elba and singer Cerys Matthews also helped out on the trading floor.