The Sete Cidades Tale

"In the Seven Cities Old Kingdom there was a king which has a very pretty daughter. This little princess loved the country life so much that she walked a lot throughout the fields, contemplating mounts and valleys, villages and customs.
On a beautiful day she found a young shepherd and talked lastingly with him, and, one day, those long talks turned into a romance. Since then they started to meet every day, swearing love and mutual affection.
But the princess's father already decided her destiny because of a prince, heir of another kingdom, which intended her hand. Therefore the King had to suspend this romance with the shepherd. Thus, the princess was forbidden to meet with him again, although her father consents her a last farewell with the shepherd. But, when they met for the last time, both of them cried so much that, at their feet, two lagoons were formed: a blue one, made of the fallen tears of the pretty princess blue eyes; the other, green, made by the spilled tears of the young shepherd green eyes.
The two amorous were separated for always, but the two lagoons made from their tears remained together for the all eternity"