In the epic Mahābhārata, Jayadratha was the king of Sindhu Kingdom (so he is also called as Saindhava). He was married to Dushala, the only sister of the 100 Kaurava brothers. He was the son of the king Vridhakshtra.
A warrior on the side of Kauravas who closed the breach effected by Abhimanyu in the Chakravyuha military formation by Dronacharya and trapped him inside.