▁first ▁time ▁that ▁mort ars ▁were ▁used ▁in ▁Ireland . ▁Oliver ▁C rom well ▁failed ▁to ▁re take ▁D unc annon ▁in ▁ 1 6 4 9 , ▁but ▁it ▁surrender ed ▁in ▁ 1 6 5 0 ▁after ▁a ▁block ade ▁led ▁by ▁Henry ▁I re ton . ▁ ▁In ▁ 1 6 9 0 ▁it ▁hosted ▁two ▁k ings : ▁King ▁James ▁II ▁sa iled ▁from ▁D unc annon ▁to ▁K ins ale ▁on ▁ 3 ▁July , ▁and ▁th ence ▁to ▁France , ▁while ▁King ▁William ▁III ▁stayed ▁at ▁the ▁Fort ▁in ▁September ▁ 1 6 9 0 ▁when ▁bad ▁weather ▁delayed ▁his ▁return ▁to ▁England . ▁The ▁site ▁where ▁James ' ▁boat ▁depart ed ▁be ars ▁the ▁name ▁" K ing ▁James ' ▁H ole ." ▁ ▁A ▁l ighth ouse ▁was ▁constructed ▁in ▁ 1 7 7 4 ▁and ▁remains ▁in ▁use . ▁ ▁The ▁fort ▁at ▁D unc annon ▁( command ed ▁by ▁William ▁F aw c ett ) ▁was ▁one ▁of ▁the ▁few ▁places ▁in ▁County ▁W ex ford ▁that ▁did ▁not ▁fall ▁under ▁United ▁Irish men ▁( R eb el ) ▁control ▁during ▁the ▁ 1 7 9 8 ▁Reb ell ion ; ▁the ▁fort ▁and ▁town ▁thus ▁became ▁a ▁san ctu ary ▁for ▁fle eing ▁loyal ists ▁and ▁troops ▁in ▁south ▁W ex ford ▁and ▁was ▁also ▁used ▁as ▁a ▁prison ▁and ▁place ▁of ▁execution ▁for ▁reb els , ▁from ▁which ▁it ▁gained ▁inf amy ▁as ▁the ▁Cro ppy ▁Boy ' s ▁site ▁of