Acha of Deira was a princess of Deira, and the daughter of Ælla of Deira. Her brother was Edwin of Northumbria, and her grandfather was Yffe but apart from him, her earlier origin is unknown.
Biography Acha married Æthelfrith, king of Bernicia. He may have married her prior to taking power in Deira, in which case the marriage may have facilitated it, or he may have done so afterwards in order to consolidate his position there.
They had eight children: Eanfrith of Bernicia (590–634 AD)Eanfrith 2. Prosopography of Anglo-Saxon England. Oswald of Northumbria (c. 604–5 August 642 AD) Oswiu of Northumbria (c. 612–15 February 670 AD) Oswudu of Northumbria Oslac of Northumbria Oslaf of Northumbria Offa of Northumbria Æbba of NorthumbriaÆbbe 2. Prosopography of Anglo-Saxon England.
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