May I suggest this as a list of ruling authorities of the Prince-Bishopric of Münster.
The Sede Vacante is based on the coins which is said to be Sede Vacante on the Numista catalough.
Hope this can be usefull.
Bishops of Münster
- Anonymous
Prince-Bishops of Münster:
- Otto I of Oldenburg (1203-1218)
- Otto II of Lippe (1247-1259)
- Potho of Pothenstein (1379-1382)
- John of Pfalz-Simmern (1457-1466)
- Eric II of Saxe-Lauenburg (1508-1522)
- Frederick III of Wied (1522-1532)
- Francis of Waldeck (1532-1553)
- John II of Hoya (or) John IV of Hoya (1566-1574)
- Ferdinand I of Bavaria (1612-1650)
- Sede Vacante (1650(-1651?))
- Christoph Bernhard of Galen (1650-1678)
- Sede Vacante (1683)
- Sede Vacante (1688)
- Frederick Christian of Plettenberg (1688-1706)
- Sede Vacante (1706)
- Francis Arnold von Wolff-Metternich zur Gracht (1706-1718)
- Sede Vacante (1718-1719)
- Clemens August I of Bavaria (1719-1761)
- Sede Vacante (1761)
- Maximilian Frederick of Königsegg-Rothenfels (1761-1784)
- Sede Vacante (1801)
Sources:
https://en.wikipedia.org/wiki/Prince-Bishopric_of_M%C3%BCnster#Bishops_and,_from_1180,_Prince-Bishops
https://www.wikidata.org/wiki/Q1694775