 Nyora kupfuurira kweiyi ndima - MuChibvumirano cheGuérande, icho chakagumisa Hondo yeBreton Succession, Duchy yeBrittany yakaitwa nhaka muvarume veMontfort mutsara, pakuguma kwayo kwaifanira kupfuura kune varume veBlois-Penthièvre. Muna 1420 mhuri yaPentièvre yakaisa muchinda mujeri mukuedza kwakakundikana kuwanazve Brittany. Pakafa mambo wokupedzisira wechirume weMontfort, Francis II weBrittany, umambo hwacho hwakapfuudzwa kumwanasikana wake, Anne weBrittany. 