Note 107 — INTRODUCTION THE NAVY BEFORE 1509

60,000 marvedis = 160 ducats of account, that is ducats of 375 maravedis each. The coined ducat was of 365 marvedis or ten reals twenty-five maravedis, estimated as equivalent to forty-five reals and forty-eight maravedis now (Shaw, Hist. of Currency). The real of 1492 contained 51.23 grains of silver (Del Mar, Money and Civilisation, p. 93). A century later the Spanish or Portuguese ducat passed for 5s 6d English (Arber, An English Garner, iii, 184).