Sueldo de oro = 10 metales or mitgales, 1 metale = 18 pepiones.
But both these importations were suppressed by Alfonso X., the Wise, of Castile.
In 1252 he coined his maravedis blancos, or Burgaleses, to replace the sueldos pepiones.
6 dineros = 1 sueldo,
15 sueldos = 1 maravedi Burgalese.
This maravedi bore the ratio of 1: 6 to the old maravedi de oro.
This money (Burgalese) was subsequently known as moneda viejo, maravedis viejos, or moneda blanca.
Six years after its introduction, however, Alfonso demonetised his own Burgaleses to make room for his maravedises negros, or prietos, a money of billon which lasted till the days of Ferdinand and Isabella.
Twenty-three years later Alfonso issued a second "white money" (1281), so called as distinguished from the Burgaleses, mention of which recur.
To the "second white" (blanco segundo) was also given the (commoner) name of new (novenes). It was issued at one-fourth the value of the prietos. The relationship of the novenes to the prietos and to the standard (now supposititious) gold maravedi is thus expressed:—