▁in ▁a ▁Middle ▁Irish ▁text ▁c . 1 4 0 0 ▁from ▁The ▁Y ellow ▁Book ▁of ▁L ec an ▁entitled ▁The ▁S ett ling ▁of ▁the ▁Man or ▁of ▁T ara , ▁in ▁which ▁verse ▁ 3 4 ▁states - ▁ ▁daughter ▁of ▁T oga ▁of ▁the ▁grey ▁storm y ▁sea , ▁ ▁at ▁that ▁time ▁’ tw as ▁a ▁woman , ▁ ▁she ▁from ▁whom ▁S li ab h ▁R ais en ▁is ▁named . ▁ ▁The ▁earliest ▁surv iving ▁mention ▁of ▁the ▁name ▁occurs ▁in ▁the ▁Ann als ▁of ▁the ▁Four ▁Masters ▁for ▁the ▁year ▁ 1 1 1 1   AD - ▁A ▁pre dat ory ▁exc urs ion ▁was ▁made ▁by ▁To ird he al b h ach ▁U a ▁Con ch ob h air ▁and ▁he ▁pl under ed ▁T ear mann - D ab he og . ▁Another ▁pre dat ory ▁exc urs ion ▁was ▁made ▁by ▁him ; ▁and ▁he ▁pl under ed ▁as ▁far ▁as ▁Be ann - Each lab h ra , ▁S li ab h - R uis en ▁and ▁L och - E ir ne . ▁ ▁A ▁poem ▁about ▁the ▁River ▁Sh annon , ▁composed ▁at ▁the ▁beginning ▁of ▁the ▁ 1 7 th ▁century ▁by ▁T ad g ▁Ó g ▁Ó ▁h U ig inn ▁( b . ▁ 1 5 8 2 ) ▁states ▁in ▁st anza ▁ 4 - ▁Mar ▁m hus g las ▁do ▁m h ór - b hu in ne ▁go ir id ▁b