Porus

Porus or Poros (from the Greek Πῶρος, Pôros) was a king of the Pauravas whose territory spanned the region between the Hydaspes (Jhelum) and Acesines (Chenab) rivers in what is now Punjab. Porus was defeated by Alexander the Great in the Battle of the Hydaspes. Alexander was however greatly impressed by his adversary and not only reinstated him as a satrap of his own kingdom but also granted him dominion over lands to the north extending until the Hyphasis (Beas). After Alexander's death in 323 BC, Porus was assassinated by one of Alexander's generals named Eudemus sometime between 321 and 315 BC.