Duryodhana is a major character in the Hindu epic
Mahabharata and was the eldest of the
Kauravas, the hundred sons of blind king
Dhritarashtra and Queen
Gandhari. Despite being the first born son of the incumbent king, he becomes disqualified as heir to the throne of
Hastinapura upon the return of his cousins, the
Pandavas, who left their rural forest dwelling upon the death of their father
Pandu, the preceding king of Hastinapura and younger brother to Dhrithrashtra. His resultant animosity towards his cousins renders Duryodhana the chief antagonist of the epic.
Karna was the closest friend of Duryodhana. Notably, Duryodhana, with significant assistance from Karna, performs Digvijaya Yatra when the Pandavas are in exile, conquering all kings in every direction of the world, establishing himself as the emperor of the world.