He is an obscure figure, known only in two sources, and remains characterless.
It is not certain that he was ever recognized as a Mormaer of Lennox, although one source does call him that.
However, the land was restored to a native magnate, Ailin's son Ailín, and recognized as a Mormaer (comes).
Perhaps the crown had never really controlled it; or perhaps, as Neville suggests (p. 15), the frontier region of Lennox lost its importance after the defeat and death of Somhairle mac Gille Bhrigdhe.
Part of the reason was undoubtedly the promotion of David to the Earldom of Huntingdon.