The standard of the future George IV as Prince of Wales, 1801-20 pattern. The flag is made of hand-sewn silk with the design appliquéd with painted details. The strings of the Irish harp are made of silk ribbon. It has a linen hoist with a rope attached for hoisting.

The standard is quartered with the arms of England (in the first and fourth quarters), Scotland and Ireland (second and third quarters), with an inescutcheon containing the arms of Hanover overall. This does not have the crown of Charlemagne in the centre or a crown or electoral cap on the top.

When the union of the Irish and Westminster parliaments took place in 1801, changes in flags and banners were left to the discretion of the monarch. George III took the opportunity to abandon the title of King of France and the royal arms were altered, the French royal arms (three gold fleurs-de-lis on a blue background) were removed from the second quarter.