According to the same source, when Edmund  Cumbria to Máel Coluim mac Domnaill, he had done so on the condition that the latter would be his  ("co-worker", "even-worker", "fellow-worker", "together-wright"). Less reliable non-contemporary sources such as De primo Saxonum adventu, both the Wendover and Paris versions of Flores historiarum, and Chronica majora allege that Edgar granted Lothian to Cináed in 975. If this supposed grant formed a part of the episode at Chester, it along with the concord of 945 could indicate that the assembly of 975 was not a submission as such, but more of a conference concerning mutual cooperation along the English borderlands.
According to the same source, when Edmund transferred Cumbria to Máel Coluim mac Domnaill, he did so on the condition that the latter would be his ("co-worker", "even-worker", "fellow-worker", "together-wright"). Less reliable non-contemporary sources such as De primo Saxonum adventu, both the Wendover and Paris versions of Flores historiarum, and Chronica majora state that Edgar granted Lothian to Cináed in 975. If this supposed grant was part of the episode at Chester, it along with the concord of 945 could indicate that the assembly of 975 was not a submission but more of a conference concerning mutual cooperation along the English borderlands.