The horse of Alexander the Great. Carried him faithfully from Macedonia to India and back as far as Babylon, so his gratitude in naming a city (somewhere in Central Asia) after his horse can be somewhat put into perspective. That is a helluva long distance 8)

As such, has also been the name of subsequent horses hoping to tap into the same vein of mythos. Baron Munchausen's horse, according to the fables, was Bucephalus.

The below-mentioned song is named Bucephalus Bouncing Ball and is entirely composed of tweaked samples of a ball-bearing hitting various surfaces.