The birth of river Seine... seen by Roman gods

Etymologically, the word Seine comes from sequana, from Celtic quan ("winding").

Besides, a goddess Sequana exists, she was worshipped in Seine’s springs. People probably Christianized her through saint Seine’s character.

Another tradition says Bacchus’ daughter, Seine, went in Gaul with Ceres.

One day, Neptune saw Seine: she found her pretty, and started to chase her. Seine ran away: oh, Neptune nearly reached her! But suddenly, she changed herself into water… the river Seine was born!