The official chronicler of White Angel Rios, has been appointed as Treasurer of the Royal Spanish Association of Official Chroniclers, RAECO in the XLII National Congress held during 23 and 24 September in the city of Burgos.
In addition to the appointment, Rivers gave a lecture collection under the title of 'Black and White', which linked the city with the Burgos blanqueño city by two events.
On the one hand, the sealed letter from Burgos with a sentence of fire the Moor, Mahomat Abollexe, Black, and his procurer, John of God, for having deceived Christian, Mari Fernandez to have Mahomat sex.
This is the last document in which the name of Black appears.
The second event mentions the burgalés, Pedro I 'the Cruel' or 'Death Wish' as ​​possible enabler of change Black to White because of his marriage to Blanche of Bourbon.
Source: Ayuntamiento de Blanca