Rassilon was, alongside The Other and Omega, one of the founders of Time Lord civilisation and arguably the single greatest figure of Gallifreyan history. He was generally considered the first Time Lord, though some believed that distinction belonged to his compatriot Omega. The seal was a symbol of power, utilised by Rassilon during the war against the Great Vampires and Old Ones. These earrings are great for any true Doctor Who fan!!!