First Castilian poet known by name
Refined religious verse style
Portraits a simple and pure religious faith with abundance of rustic images, picturesque details and everyday scenes (Lateran reforms)
He is a vulgarizer of Christian theology
Excellent example of the religious poem style Mester de Clerecía
Use of the “cuaderna vía” verse (14- syllable verses arranged in quatrains with a single rhyme)
He transferred numerous vocabulary from Latin into Spanish
Great source to understand medieval theological thought