September 27, 1805, Copenhagen, Denmark.
May 26, 1842, Sorterup, Slagelse, Denmark.
Son of Frederik Oldenburg of the Danish Supreme Court, Theodor became a rector to congregations in Sorterup and Ottestrup, near Slagelse. He also edited the magazine Dansk Missionsblad, beginning in 1837. After his death, his friend P. Christian Kierkegaard edited a collection of his hymns and poems in the book Mindeblade om Theodor Vilhelm Oldenburg, 1844.