Mustafakemalpaşa River

In Greek Mythology, Rhyndacus was a son of Oceanus and Tethys, and his daughters by Mount Didymos, the Rhyndacides, were revered as pegaeæ, meaning water-Springs.

In his Dionysiaca, Nonnus recorded their waters being used by Dionysus to drug the nymph Nicaea after she offended the Rhyndacides by murdering the shepherd Hymnus.

[3] Although the Rhyndacus was formerly the main artery running to the Sea of Marmara and served as the border between Mysia and Bithynia,[2] today the Mustafakemalpaşa is merely a tributary of the Simav, which then flows into the Sea of Marmara.

Under Manuel I, the Byzantine Empire based their main Anatolian army at Lopadion (modern Uluabat) on the Rhyndacus.

After the sack of Constantinople during the Fourth Crusade, the Latin emperor Henry won another battle there against the Nicaean Empire on October 15, 1211.