This man's murder of Dmitri ended the Rurik line and resulted in the (*) Time of Troubles.
This ruler was betrayed by Andrei Kurbsky in the Livonian War, leading to a fear of aristocrats that encouraged him to form a secret police, whose insignia was a dog's head and broom, called the Oprichniki (OP-reech-NEE-kee). This man's murder of Dmitri ended the Rurik line and resulted in the (*) Time of Troubles. Initially the Grand Prince of Moscow, he was the first man to take a broader title. For 10 points, name this first tsar of Russia, who was known for his iron-fisted rule.
This ruler was betrayed by Andrei Kurbsky in the Livonian War, leading to a fear of aristocrats that encouraged him to form a secret police, whose insignia was a dog's head and broom, called the Oprichniki (OP-reech-NEE-kee).
{Ivan} the Terrible [or {Ivan IV} Vasilyevich; or {Ivan} Chetvyorty; or {Ivan} Grozny; prompt on