4 Reales - Ferdinandus V and Elisabet I Burgos

Ferdinand and Isabella's joint coinage — the so-called "Reyes Católicos" issues — continued to be struck long after both monarchs were dead, a bureaucratic inertia that persisted through multiple subsequent reigns. Ferdinand died in 1516, Isabella in 1504, yet the Burgos mint carried their effigies forward for decades under Charles I and Philip II, partly because no formal order discontinued the type. The Burgos mint held particular importance as one of Castile's oldest royal minting centers, with privileges dating to the medieval period.

Cal#192 places this among the better-documented of the macuquina-style cobs, though Burgos production is generally less well-attested in surviving records than Toledo or Seville.