Could a medieval prisoner pay ransom on the spot?

Could a captured noble pay his ransom immediately with the valuables he carried?

No; carried property was already forfeit, and the ransom was instead calculated from the captive's lands and income.

A viewer suggests that a prisoner might pay a ransom immediately from what he carried. Everything on the captive was already forfeit to the captor. The larger ransom was assessed against the prisoner's lands and income, making it a claim on estate wealth rather than a battlefield cash payment. A noble who had understated his income might suddenly benefit from the earlier concealment.