Namesakes
Æðelred II the Unready
(m) 968-1016 
English and British Kings and Queens 978-1013; 1014-1016
Æðelred I
(m) c. 847-871
English and British Kings and Queens 865-871
Aelred of Rievaulx
(a.k.a. Æthelred) (m) 1109-1166
Saints