1 Albus - Frederick I

Frederick I of Hesse-Cassel held the unusual distinction of ruling simultaneously as King of Sweden from 1720 until his death in 1751, a dynastic arrangement that left Hesse-Cassel itself governed largely through regents and ministers. The albus was a small regional silver denomination with deep roots in the Rhenish monetary system, by this point a relic denomination kept in circulation more by local habit than by any rational monetary planning.