Dorotheus (jurist) in Wikipedia
Dorotheus (Greek: Δωρόθεος) was a professor of jurisprudence in the law school of Berytus in Syria, and one of the three commissioners appointed by the Eastern Roman emperor Justinian I to draw up a book of Institutes, after the model of the Institutes of Gaius, which should serve as an introduction to the Digest (or Pandects) already completed. His colleagues were Tribonian and Theophilus; and their work was accomplished in 533. He also helped compile the second edition of the Codex Constitutionum (published in 534). In 542, as a commentary on the Digest, he published what is called the Index. Fragments of this commentary, which was in the Greek language, have been preserved in the Scholia appended to the body of law compiled by order of the emperor Basilius the Macedonian and his son Leo the Wise, in the 9th century, known as the Basilica. From this, it seems probable that the commentary of Dorotheus contained the substance of a course of lectures on the Digest delivered by him in the law school of Berytus, although it is not cast in a form so precisely didactic as the Index of Theophilus.
Dorotheus of Sidon in Wikipedia
Dorotheus of Sidon (c. 75 CE) was a first-century Hellenistic astrologer who wrote a didactic poem on horoscopic astrology known in Greek as the Pentateuch (five books), or in Latin as the Carmen Astrologicum (Song of Astrology). The Pentateuch, which was a textbook on Hellenistic astrology, has come down to us mainly from an Arabic translation dating from around 800 AD (itself a translation of a 6th century Middle Persian translation from the original Greek, which was done by the Persian astrologer Omar Tiberiades and has been lost.) The text, already fragmentary at times, is therefore not entirely reliable, and is further corrupted by interpolations by the later Persian translators. Nevertheless, it remains one of our best sources for the practice of Hellenistic astrology, and it was a work of great influence on later Christian, Persian, Arab and medieval astrologers. The middle of the first century, a time when Dorotheus is believed to have flourished, was a period of intense astrological development, following two millennia of accumulated tradition.
Very little is known about Dorotheus himself. Dorotheus most likely lived and worked in Alexandria, in Egypt, which, in addition to being the most important scholastic center in the Hellenistic world, was also the main location where the oldest Mesopotamian, Greek and Egyptian astrological techniques were synthesized together in order to create horoscopic astrology.