<p>What really makes the royal family tick?<br>It's a question that royal watchers have pondered for as long as the monarchy has existed. And who better to ask than the army of servants and staff past and present who feed and clothe the royals, organise their days, polish their shoes, carry the deer and pheasants they shoot and even put the toothpaste on their toothbrushes?<br>From medieval times, when the Groom of the Stool oversaw the monarch's...