Álvaro Ferrer is noted as violer in the 1510 census of Valencia (Rafael Valldecabres Rodrigo, El Cens de 1510, relació dels focs valencians (Universitat de Valencia, 2002). He paid 10 sous as taxes in 1510. He also appears as a member in the 1533 and 1535 records of the Guild of carpenters (ARV - Archivo del Reino de Valencia, Gremios, llibre 178). No other data known.
Álvaro is among the longest working registered old violeros of Valencia: registered from 1510 until 1535. (borgaard2022). It is to be assumed that he made vihuelas