Denier - Jean de Prangins

Jean de Prangins served as Bishop of Lausanne from 1433 until his death in 1440, a tenure marked by the turbulent final years of the Western Schism's aftermath and the growing friction between episcopal authority and the city's bourgeoisie. His coinage was struck under the longstanding monetary privilege held by the bishops of Lausanne, a right dating to the early medieval period that was fiercely defended against encroachment by Savoy throughout the fifteenth century.

The billon content of these deniers reflects the chronic silver shortage afflicting Swiss episcopal mints during this decade.