Seleucus I Nicator was a leading
officer of Alexander the Great's League of
Corinth and one of the Diadochi. In the Wars of
the Diadochi that took plaafter Alexander's
death, Seleucus established the Seleucid dynasty
and the Seleucid Empire. He was defeated by the
emperor of India, Chandragupta Maurya and
accepted a matrimony alliance for 500 elphants
after ceding the territories considered as part of
India.