Coventina

Coventina was the Britannic goddess of freshwater (wells, springs, fountains, lakes and rivers), healing, and of time. She was possibly the first Lady of the Lake.

History
Little is known about her history, including her parentage. She began to be worshiped by the Celtic Britons circa 200 BC and at some point her worship may have crossed over to the Gaulish Celts living in modern day France.

Becoming Roman
The Roman conquest of Britain began in 43 AD under the reign of Emperor Claudius. Both the native people and their gods resisted the invaders.

By 48 AD however the Romans had conquered all the territory between the Humber estuary and Severn estuary. Areas remaining under British rule were Demonni (Cornwall and Devon), Wales, and the Northwest of England.

In 50 AD, Coventina became the first British god to submit to the Romans and she began to assimilate into the Roman pantheon.

She slept with Mars, the Roman god of War, and begot a daughter named Vivian.

As the Romans expanded their territory and tightened their control on the island, more British deities. The rest of the British gods either submitted to the Romans or fled into exile.

Death
In 400 AD, Coventina was slain.