Layher, William.

Queenship and voice in medieval Northern Europe by: Agnes, (Queen, consort of Eric V, King of Denmark,) (-1304.); Euphemia, (Queen, consort of Haakon V, King of Norway,) (1270-1319.); Margrete, I, (Queen of Denmark, Norway, and Sweden,) (1353-1412.); Layher, William. (Electronic resources)