The Garter Procession Every June, the Knights of the Garter gather at Windsor Castle, where new knights take the oath and are invested with the insignia. The knights process to a service in St George’s Chapel, wearing their blue velvet robes, the badge of the Order and black velvet hats with white plumes. Very Limited availability. Priority given to members who have not attended previously Entry 12pm - 2pm, Procession begins at 2:40pm Cost: FREE Booking Deadline: Whilst ticket supply lasts Manage Cookie Preferences