Winston Churchill/WMG

Winston Churchill was the reincarnation of King Arthur.
Legend foretold that Arthur would return when Britain needed him the most. I'd say being at the mercy of a mass-murdering, Jew-hating maniac would qualify.
 * If that were true then it is entirely possible that Sir Francis Drake was also the reincarnation of Arthur.
 * No-one ever said he would reincarnate just once.
 * For that matter there is another who stepped up in one of England's dark hours. And he was actually named Arthur.