When is the when of the Physician’s Tale?

Yet more Serra at, of course, the Gagosian. When is the when of a piece that corrodes?

by KARL STEEL

In re: grading, just wrote this comment in response to one of several paper proposals on the Physician’s Tale and what it says about gender relations in Chaucer’s time:

The question here is which time : after all, Chaucer is writing historical fiction, as were his sources. Livy, who wrote the original story in the 1st century, himself set it in Republican Rome, centuries before he lived. Then some 1300 years later, the Romance of the Rose translated the story into French verse, and then 150 or so years still later, Chaucer used that story to write his tale, while citing Livy, who had lived roughly 1400 years before him.

So when is the when of the Physician’s Tale? What era is this story talking about?