Romancero can be translated as a ballad collection. Of anonymous folk origin, these ballads have been part of the Spanish oral tradition (of course meant to be sung) at least far back as the early 1400s, but they were not written down and published until 1530. The form was adopted by poets of the sixteenth century; Lope de Vega, for example, penned the lyrical ballad A mis soledades voy.