what was his early life like?
He most likely studied at Antioch, and later was forced to leave his birthplace due to Muslim rule. He studied in Constantinopole and then travelled to Rome. He was consecrated archbishop of Canterbury in Rome on 688. .
Early life
It is most likely that he studied at Antioch, the historic home of a distinctive school of exegesis, of which he was a proponent. Theodore also knew Syriac culture, language and literature, and may even have travelled to Edessa. The Syriac "Acts" of Saint Milus of Persia, which was incorporated into the Old English Martyrology, was probably brought to England by Theodore.

Though a Greek could live under Persian rule, the Muslim conquests, which reached Tarsus in 637, certainly drove Theodore from Tarsus; if he did not flee earlier, Theodore would have been 35 years old when he left his birthplace. Having returned to the Eastern Roman Empire, he studied in the Byzantine capital of Constantinople, including the subjects of astronomy, ecclesiastical computus (calculation of the date of Easter), astrology, medicine, Roman civil law, Greek rhetoric and philosophy, and the use of the horoscope.

At some time before the 660s, Theodore had travelled west to Rome, where he lived with a communi
what is nach dir, herr, verlanget mich, bwv 150? An extant cantata or a piece of music . where is this music from? The original piece is lost and this survives in a copy made by C F Penzel. who composed this score? Bach. what is the history behind this score? On the basis of the text, it has been suggested that the work was written for a penitential service. what is the origin of this above mentioned service? It was developed by the  Irish abbots Cummean ,Columbanus and Archbishop of Canterbury, Theodore of Tarsus. where was the last mentioned person born? Tarsus in Cilicia.
He saw devastating wars between Byzantium and the Persian Sassanid Empire and lived under Persian rule. Theodore's childhood saw devastating wars between Byzantium and the Persian Sassanid Empire. Persian forces captured Tarsus when Theodore was 11 or 12 years old, and evidence exists that Theodore had experience of Persian culture.  Theodore also knew Syriac culture, language and literature. His childhood saw devastating wars between Byzantium and the Persian Sassanid Empire.
Theodore of Tarsus Theodore of Tarsus Theodore of Tarsus
Early life Early life Early life
saw devastating wars between Byzantium and the Persian Sassanid Empire Theodore was of Byzantine Greek descent, born in Tarsus in Cilicia, a Greek-speaking diocese of the Byzantine Empire. Theodore's childhood saw devastating wars between Byzantium and the Persian Sassanid Empire, which resulted in the capture of Antioch, Damascus, and Jerusalem in 613-614. Persian forces captured Tarsus when Theodore was 11 or 12 years old, and evidence exists that Theodore had experience of Persian culture. It is most likely that he studied at Antioch, the historic home of a distinctive school of exegesis, of which he was a proponent. Theodore also knew Syriac culture, language and literature, and may even have travelled to Edessa. The Syriac "Acts" of Saint Milus of Persia, which was incorporated into the Old English Martyrology, was probably brought to England by Theodore. heodore's childhood saw devastating wars between Byzantium and the Persian Sassanid Empire, which resulted in the capture of Antioch, Damascus, and Jerusalem in 613-614. 
wiki:1172410
Theodore of Tarsus [SEP] Early life
Theodore was of Byzantine Greek descent, born in Tarsus in Cilicia, a Greek-speaking diocese of the Byzantine Empire. Theodore's childhood saw devastating wars between Byzantium and the Persian Sassanid Empire, which resulted in the capture of Antioch, Damascus, and Jerusalem in 613-614. Persian forces captured Tarsus when Theodore was 11 or 12 years old, and evidence exists that Theodore had experience of Persian culture. It is most likely that he studied at Antioch, the historic home of a distinctive school of exegesis, of which he was a proponent. Theodore also knew Syriac culture, language and literature, and may even have travelled to Edessa.