Unknown place just south of Medinaceli. The name seems to have its root in the word for geese, e.g. a place for keeping geese.
The text infers it was on the north bank of the Jalon; a few lines later it seems to be on the south bank.
They crossed the mountains of Luzon and passed Arbuxuelo, and came to Salon, and the Moor lodged them in the place which is called Ansarera; all this he did for the love of the Cid Campeador.