Biography

Theoktistus was a monk at the great mon­as­tery of the Stu­di­um in Con­stan­ti­no­ple (now Istan­bul, Tur­key), cir­ca 890. John Neale called him a friend of St. Jo­seph.

Theoktistus’ on­ly known work is Sup­pli­ant Ca­non to Je­sus, found at the end of the Par­a­cle­tice or Great Oc­to­ech­us, a vol­ume in eight parts, con­tain­ing the Fer­i­al Of­fice for eight weeks.