London, GB, British Library, Cotton Roll XIV.12

Contents:Biblical history followed by geneaology of popes and European rulers, preceded by two diagrams, one of which is the Septenarium Pictum.

Bibliography:Cleaver, Laura. “Past, Present and Future for Thirteenth-Century Wales: Two Diagrams in British Library, Cotton Roll XIV.12.” Electronic British Library Journal, 2013, 1–26.