document — Palmieri, On Christian Marriage
From the Roman Council of Gregory V, A.D. 998
¶1566.
Canon I. That King Robert (of the Franks) leave his blood-relative Bertha, whom he led as wife contrary to the laws, and do penance of seven years, according to the prefixed ecclesiastical degrees, has been judged. But if he shall not have done this, let him be anathema. And the same was commanded to be done concerning the same Bertha.