ul ▁ ▁D ion ys ius , ▁Bishop ▁of ▁Cor inth , ▁ 2 nd - century ▁bishop ▁ ▁Fa ust us , ▁Ab ibus ▁and ▁D ion ys ius ▁of ▁Alexand ria , ▁d . ▁ 2 5 0 , ▁three ▁Christian ▁mart y rs ▁ ▁D ion ys ius , ▁ 3 rd - century ▁Christian ▁mart yr ▁and ▁saint , ▁noted ▁in ▁The odore , ▁Philipp a ▁and ▁compan ions ▁ ▁Pope ▁D ion ys ius ▁of ▁Alexand ria , ▁ 3 rd - century ▁Egypt ian ▁bishop ▁ ▁Pope ▁D ion ys ius , ▁ 2 5 9 – 2 6 8 ▁ ▁D ion ys ius ▁( bishop ▁of ▁Milan ), ▁also ▁called ▁D ion ys ius ▁of ▁Milan , ▁bishop ▁of ▁Milan ▁ 3 4 9 - 3 5 5 , ▁saint ▁ ▁Pse udo - D ion ys ius ▁the ▁Are op ag ite ▁( 5 th ▁century ), ▁name ▁claimed ▁by ▁a ▁pseud onymous ▁writer , ▁identified ▁by ▁some ▁with ▁Georg ian ▁the olog ian ▁Peter ▁the ▁I ber ian ▁( 4 1 1 – 4 9 1 ), ▁author ▁of ▁Cor pus ▁Are op agit icum ▁ ▁D ion ys ius ▁Ex igu us ▁( c . ▁ 4 7 0 – c . ▁ 5 4 0 ), ▁mon k ▁from ▁S cy th ia ▁Minor ▁who ▁invent ed ▁the ▁An no ▁Dom ini ▁era ▁ ▁D ion ys ius ▁I ▁Tel ma har o yo ▁( d . ▁ 8 4 8