Mægþa land

Selon le Dictionnaire Anglo-Saxon :

Mægþa land

the Polish province of Mazovia (?) :-- Be norþan Horiti is Mægþa land; and be norþan Mægþa londe Sermende óþ ða beorgas Riffen, Ors. l, l; Swt. 16, 21. mægþa land