What was the name of Alexander the Great's war horse?

Bucephalus was Alexander the Great's loyal warhorse. Alexander calmed the fear of Bucephalus by turning him towards the sun. The great horse could no longer see his own shadow, which he feared. From then on, the horse gave his trust to Alexander.

Plutarch, a Greek historian, biographer and essayist, told the story of how, in 344 BC, at twelve or thirteen years of age, Alexander won Bucephalus by making a wager with his father. A horse dealer named Philonicus, the Thessalian, offered Bucephalus to King Philip II for the remarkably high sum of 13 talents. But, because no one could tame the animal, King Philip was not interested. Alexander was interested, and he offered to pay should he fail to tame the horse. Alexander was given a chance and surprised all by subduing Bucephalus.