1. Harley MS 490 Reference (shelfmark): Harley MS 490 Title: Walter of Bibbesworth, Tretiz de langage Scope & Content: Contents: ff. 1r-31v: Walter of Bibbesworth (b. 1235, d. 1270), Tretiz de langage, imperfect at the beginning and end, also known as 'Aprise de franceis', 'Femme' and Femina. Collection Area: Western Manuscripts Languages: French, Old Date Range: 2nd half of the 14th century Extent: 1 volume