Mike Tindall joined forces with the Duchess of Gloucester – the wife of the Queen's cousin, Prince Richard, Duke of Gloucester - for a cause close to his heart. 

Their video call was recorded in the Court Circular, which details all of the royal family's engagements. The entry read: "The Duchess of Gloucester, Patron, Parkinson's UK, this morning held a meeting with Mr Michael Tindall (Patron, Cure Parkinson's) via video link."