Well, Boar, actually. But B was already taken.
Now here's a classic: Through the ages, the boar hunt was a favorite pastime of kings and heroes, and one of the most dangerous preys you could go after. Think of the Calydonian boar in Greek mythology (it took several heroes to hunt it down), or the Erymanthian boar, one of Heracles' labors. (Or, you know. King Robert Baratheon. Sometimes the boar wins.)
Hungarian history has not one, but two famous boar-related death cases.
(Yeah, I'm Catholic. Why?)
Here is the twist: There is a theory that "boar" in this case actually referred to a person, rather than an animal. Remember Vazul and his sons? If they happened to be involved with the "boar" accident, the chronicle wouldn't say, since it was written after two of those sons became legitimate kings... Makes you wonder, doesn't it.
The second famous victim was Zrínyi Miklós (1620-1664), nobleman, politician, military leader and author. He is responsible for the most famous Baroque epic poem we all have to suffer through in high school (about the siege of Szigetvár), and took a very active role in the fight (both political and literal) against the Turks. In 1664, he went hunting with other noblemen, and one of them wounded a boar that they followed along the trail of blood. The person who describes the event was not present at the attack - he writes that by the time he got there, Zrínyi was mortally wounded, on the ground with the boar on his back. He had wounds on his legs and his head, and the one that killed him went straight through his neck from back to front, and he bled out.
Once again, many people at the time and since have theorized that Zrínyi was assassinated (for his political role), rather than killed by a boar. This one sounds more likely to be a hunting accident, though, since he was still alive and speaking when they found him... but you never know.