. ▁ ▁Pre - Sch ism ▁Western ▁sain ts ▁ ▁Saint ▁Vincent ▁of ▁A gen , ▁a ▁de acon ▁mart y red ▁by ▁pag ans ▁at ▁A gen ▁in ▁Gas con y ▁in ▁France ▁( c . ▁ 2 9 2 ) ▁ ▁Mart y rs ▁Prim us ▁and ▁Fel ician , ▁two ▁elder ly ▁brothers ▁be head ed ▁under ▁Dioc let ian ▁on ▁the ▁Via ▁N oment ana ▁in ▁Rome ▁( c . ▁ 2 9 7 ) ▁ ▁V ener able ▁Maxim ian ▁of ▁Sy rac use ▁( O . S . B .), ▁Bishop ▁of ▁Sy rac use ▁( 5 9 4 ) ▁ ▁V ener able ▁Col um ba ▁of ▁I ona , ▁En light ener ▁of ▁C aled onia ▁( Sc ot land ), ▁founder ▁of ▁I ona ▁Ab bey , ▁Conf essor ▁( 5 9 7 ) ▁ ▁V ener able ▁Ba ith é ne ▁mac ▁Br én ain d ▁( B a ith in , ▁Com in , ▁Com inus ), ▁dis ci ple ▁of ▁St . ▁Col um ba , ▁Abb ot , ▁of ▁T ire e ▁and ▁I ona ▁( c . ▁ 6 0 0 ) ▁ ▁Saint ▁C um ian us ▁( C um ian , ▁C um min ), ▁an ▁Irish ▁mon k ▁who ▁became ▁ab bot ▁of ▁San ▁Colomb ano ▁di ▁Bob bio ▁( c . ▁ 7 3 6 ) ▁ ▁Post - Sch ism ▁Orth odox ▁sain ts ▁ ▁Saint ▁John ▁of ▁Sh av ta , ▁Bishop ▁of