This week is the anniversary of several Early Modern events that have something in common...blood
November 13th 1553 saw the trial for high treason of Lady Jane Grey and Lord Dudley, although they were not executed until February the next year. Poor Jane's sentence called for her to "be burned alive on Tower Hill or beheaded as the Queen pleases"'[source:Wiki]. Queen "Bloody" Mary chose beheading, which was nice of her.
November 13th is also the anniversay of the Battle of Turnham Green, 1642, an early stand-off in the English Civil War, in which the Royalists, having sacked the posh new waterside flats around Brentford, attempted to seize control of one of London's most important bus garages, but were rebuffed. The English Civil Wars site tells the story.
Samuel Pepys' diary entry for 14th November 1666 gives an account of an early experiment in blood transfusion. [Press the "Back" button now if you are fond of little doggies]. Eric at the Project History blog relates the grisly facts.