Berceo, Gonzalo de

Berceo, Gonzalo de (gōnthä`lō thā bārthā`ō), c.1198–1265?, earliest known Spanish medieval poet. He was a religious in a Benedictine monastery who wrote prolifically on saints and other figures important in the history of the church. His devotion to the Virgin is expressed in 25 poems entitled Milagros de Nuestra Señora [miracles of Our Lady] (c.1245–60).