have poured blood, sweat and tears into the work of the royal family — and will make a fine king and queen when the time comes, according to an inside source. Lady Violet Manners, daughter of the Duke and Duchess of Rutland, revealed in an interview that the couple is doing a “remarkable” job representing the Firm — while also gearing up for the task ahead.The Prince of Wales, 41, is first in line for the British throne, following his father, King Charles.