⅔ Thaler - Frederick August I

Frederick August I converted to Catholicism in 1697 — a politically explosive decision in Lutheran Saxony — specifically to satisfy the requirement for election as King of Poland. The conversion was kept secret until the last possible moment. These coins were struck during precisely that uneasy opening period of his dual rule, when he was simultaneously Elector of Saxony and Augustus II of Poland, maintaining a careful fiction of confessional neutrality at home.

The two-thirds thaler denomination itself was a North German monetary convenience, pegged to the gulden at parity and widely accepted across the fragmented imperial currency zones.