History of Art – Page 24 – Nihil sub sole novum

Luzerner Chronik, Page 26

Neuhabsburg Castle – Wikipedia Article

Recueil dominicain du couvent Sainte-Catherine-de-Sienne de Douai, Folio 71r

D. Leonora Guzman.Filia Petri Nugnez.Nupta Alphonso. XI. Regi Castellae Leonor de Guzmán y Ponce de León (1310–1351), three times great-grand daughter of cousin of Saint Dominic

Luzerner Chronik, Page 25

With this oath, Zurich becomes the next member of the Swiss Confederacy.