"The Queen of Spain's Beard" is the fourth episode of the BBC historical sitcom The Black Adder, the first serial in the Blackadder series. Set in late 15th-century England, the episode parodies the ruthless practice of political marriages between the royal houses of Europe which characterised European politics during the Middle Ages. Its bawdy humour also deals with taboos surrounding premarital sex, gay stereotypes and the practice of child marriage.