Prince William and Prince Harry's charitable foundation has been forced to deny they are in financial trouble after their spending on grants for charities declined.

Prince William

Prince William

The charity - for which Duchess Catherine is also a Patron - raised a total income of £4.26 million last year, over £200,000 more than the previous year. However, their spending on charity grants dropped to £1.76 million, £730,000 lower than the last 12 months.

A spokesperson for the charity told the Mail Online: "The Royal Foundation is in excellent financial health. A number of projects are becoming firmly embedded and making a real difference to many thousands of people in the UK and around the world."

The spokesperson says the figures look low in comparison to last year because a surplus of approximately £400,000 was carried over from 2013. And in 2014, the foundation also helped to support Prince Harry's Invictus Games for wounded servicemen and women.

The charity - whose official name is The Royal Foundation of The Duke and Duchess of Cambridge and Prince Harry - describes itself as a "primary charitable vehicle" for the young rays, which prioritises young people, servicemen and conservation.

A post on their official website reads: "The Royal Foundation of The Duke and Duchess of Cambridge and Prince Harry is the Patrons' primary charitable vehicle, and hopes to become a leading philanthropic investor, effectively using its time and resources to create lasting change in targeted areas and geographies, based on need and on the interests of The Duke and Duchess of Cambridge and Prince Harry. The Foundation will seek to invest in, or partner with, organisations with proven impact, using its profile and leverage to create a multiplier effect in resources, outcomes and knowledge.

"The Duke and Duchess of Cambridge and Prince Harry will also aim to use their Foundation to respond to other needs and opportunities although at this point the Foundation is unable to accept unsolicited requests for support."