Denier - Vladislaus I

Vladislaus I received the hereditary royal title from Frederick Barbarossa in 1158 as a reward for Bohemian military support during the siege of Milan — a transaction that briefly elevated Bohemia to a kingdom before reverting to a duchy upon his abdication in 1172. Deniers struck across this fourteen-year window are notoriously difficult to sequence, as Bohemian minting practice of the period left no die-dated records and attribution relies almost entirely on typological analysis against the Cach sequence.

Cach 600 sits within a contested group; some specialists have argued individual pieces assigned to this type belong instead to the reign of Soběslav II.