Theodosius Harnack

Theodosius Andreas Harnack (Russian: Феодосий Карлович Гарнак, romanized: Feodosij Karlovič Garnak; 3 January [O.S.

Since 1848 he held an ordinary chair (tenure) as professor for practical and systematic theology.

Harnack was a staunch Lutheran and a prolific writer on theological subjects; his chief field of work was practical theology, and his important book on that subject summing up his long experience and teaching appeared at Erlangen (1877–1878, 2 vols.).

The liturgy of the then Lutheran church in Russia has, since 1898, been based on his Liturgische Formulare (1872).

Quill, An examination of the contributions of Theodosius Harnack to the renewal of the Lutheran liturgy in the nineteenth century, Madison: Drew University, Thesis (Ph. D.