Complex sentence: Adolf Harnack (May 7,1851-June 10,1930), German theologian, was born at Dorpat, in Russia (now Tallinn, Estonia) where his father, Theodosius Harnack (1817-1889), held a professorship of pastoral theology.
Split into simpler sentences: Adolf Harnack (May 7,1851-June 10,1930), was a German theologian. He was born at Dorpat in Russia (now Tallinn, Estonia) where his father, Theodosius Harnack (1817-1889), held a professorship of pastoral theology.