ency ▁has ▁ 5 ▁seats ▁and ▁compr ises ▁the ▁South - E ast , ▁South - West ▁and ▁Mid - West ▁regions ▁of ▁Ireland . ▁ ▁As ▁the ▁county ▁is ▁part ▁of ▁the ▁South - E ast ▁Region , ▁some ▁county ▁coun c ill ors ▁are ▁also ▁represent atives ▁on ▁the ▁Southern ▁Regional ▁Assembly . ▁ ▁History ▁ ▁County ▁Kil ken ny ▁takes ▁its ▁name ▁from ▁the ▁city ▁of ▁Kil ken ny . ▁Kil ken ny ▁is ▁the ▁ang lic ised ▁version ▁of ▁the ▁Irish ▁C ill ▁Ch ain n igh , ▁meaning ▁Church ▁( Cell ) ▁of ▁C ain ne ach ▁or ▁Can ice . ▁This ▁probably ▁rel ates ▁to ▁the ▁church ▁and ▁round ▁tower , ▁now ▁St . ▁Can ice ' s ▁C athedral , ▁which ▁was ▁built ▁in ▁honour ▁of ▁St . ▁Can ice . ▁ ▁The ▁Kingdom ▁of ▁Os ra ige ▁was ▁one ▁of ▁the ▁ancient ▁Kingdom s ▁of ▁Ireland . ▁ ▁The ▁Kings ▁of ▁Os ra ige , ▁the ▁Mac ▁Gi ol la ▁Ph ád ra ig ▁family , ▁re igned ▁over ▁Os ra ige ▁and ▁C ill ▁Ch ain n igh ▁was ▁their ▁strong hold . ▁The ▁Kingdom ▁of ▁O ss ory ▁existed ▁from ▁at ▁least ▁the ▁ 2 nd ▁century ▁until ▁the ▁ 1 3 th ▁century ▁AD . ▁The ▁current ▁ecc les iast ical ▁dioc eses ▁of ▁that ▁area ▁is ▁still ▁known ▁as ▁O ss ory . ▁The ▁medieval ▁Dioc ese ▁of ▁O ss ory ▁and ▁was ▁established ▁in ▁ 5 4 9 ▁AD ,