Guilhem Rainol d'At
In the north Italian troubadour manuscript "D" ( 1254 , now in the Biblioteca Estense , Modena ) , the poem "A tornar m'er enquer al primer us" is assigned to "Guillems Rauols" , probably an orthographic error for Guilhem Rainol . 
<triplet> Biblioteca Estense <subj> Modena <obj> located in the administrative territorial entity