Balak was king of Moab around 1200 BC. According to Book of Numbers 22:2, and the Book of Joshua 24:9, Zippor was the father of Balak.
Book of Revelation 2:12 - 2:14 says about Balak: 12 `And to the messenger of the assembly in Pergamos write: These things saith he who is having the sharp two-edged sword: 13 I have known thy works, and where thou dost dwell -- where the throne of the Adversary [is] -- and thou dost hold fast my name, and thou didst not deny my faith, even in the days in which Antipas [was] my faithful witness, who was put to death beside you, where the Adversary doth dwell. 14 `But I have against thee a few things: That thou hast there those holding the teaching of Balaam, who did teach Balak to cast a stumbling-block before the sons of Israel, to eat idol-sacrifices, and to commit whoredom; (Young's Literal Translation)[1]
Other sources detailing the story of Balak.
Balak died when Joshua began his conquest of Canaan.
Balak is also the name of the weekly parshah or portion in the annual Jewish cycle of Torah reading that tells the story of Balak in the Book of Numbers.