He's not Russian, but one of the largest ancient equestrian statues is a bronze statue of this emperor with his arm outstretched.
He's not Russian, but one of the largest ancient equestrian statues is a bronze statue of this emperor with his arm outstretched. This emperor fought a lengthy series of wars against the Quadi and Marcomanni tribes, during which he kept a detailed collection of his private thoughts. During this man's rule, a plague sometimes named after Galen killed off millions of people, including his co-emperor Lucius Verus. This emperor, whose death in 180 AD marks the traditional end of the Pax Romana, ended the tradition of adopting a successor, instead choosing to give the crown to his son Commodus. For 10 points, name this author of the Meditations, the last of the Five Good Emperors. 
He's not Russian, but one of the largest ancient equestrian statues is a bronze statue of this emperor with his arm outstretched.
Marcus Aurelius [do not accept or prompt on partial answer]