▁probably ▁co - ext ensive ▁with ▁U í ▁Maine ▁at ▁its ▁greatest ▁extent . ▁ ▁S ources ▁" For as ▁Fe asa ▁É ire ann ", ▁Geoff rey ▁Ke ating , ▁ 1 6 3 6 . ▁" Le ab har ▁Mor ▁n G ene al ach ", ▁Dub halt ach ▁Mac F h ir b his igh , ▁ 1 6 4 9 – 1 6 6 6 . ▁" O gy ia ", ▁R ua id h ri ▁O ▁F la ith b he arta igh , ▁ 1 6 8 4 . ▁" The ▁History ▁of ▁May o ", ▁T . H . K no x , ▁ 1 9 0 8 . ▁ ▁Category : H istor ical ▁C elt ic ▁pe op les ▁Category : E th nic ▁groups ▁in ▁Ireland ▁Category : K ings ▁of ▁Con n acht ▁Category : T rib es ▁of ▁ancient ▁Ireland <0x0A> </s> ▁Se án ▁South ▁( ; ▁ ▁– ▁ 1 ▁January ▁ 1 9 5 7 ) ▁was ▁a ▁member ▁of ▁an ▁I RA ▁military ▁column ▁led ▁by ▁Se an ▁Gar land ▁on ▁a ▁ra id ▁against ▁a ▁Royal ▁Ul ster ▁Const ab ul ary ▁bar ra cks ▁in ▁Bro oke borough , ▁County ▁F erman agh , ▁Northern ▁Ireland , ▁on ▁New ▁Year ' s ▁Day ▁ 1 9 5 7 . ▁South , ▁along ▁with ▁Fer gal ▁O ' H an lon , ▁died ▁of ▁w ounds ▁sust ained ▁during ▁the ▁ra id . ▁ ▁Early ▁life ▁