This question requires matching historical figures with their deeds. Based on the provided text and common historical knowledge:
The other figure mentioned, Vasily Kosoy, is also a historical figure involved in the succession struggles of the Grand Duchy of Moscow, but these specific events are not typically associated with him in this context.
Answer: Dmitry Shemyaka is credited with capturing and blinding Vasily II. Vasily II the Dark was wounded and taken prisoner during the campaign to Kazan.