Scamandrius I reigning from (1020 - 990 BC) was the third Emperor of the Heracleidae Empire and a member of the Heracleidae dynasty. The Heracleidae state was the precursor of the modern Diadochian Empire. Scamandrius succeeded his father Perséas I in 1020 BC. Legend claims that Scamandrius ruled for thirty years, during which time he is said to have strengthened the Heracleidae Kingdom.