King from about 189 to about 167 B.C. of the Greco-Bactrian kingdom, which under his rule reached the highest point of its power.
Demetrius conquered a number of regions in what is now Afghanistan and northwest India. He built a capital in north-west India, and on his coins he gave himself the title of King of the Indians. Around 175 B.C., Eucratides, the king of Bactria, revolted against Demetrius. In the battle against him Demetrius perished and his kingdom disintegrated. Menander, Demetrius’s general, became king of the Indian part of the kingdom.