Ambrosius or Ambrosios (a Latin adjective derived from the Ancient Greek word ἀμβρόσιος, ambrosios "divine, immortal") is a given name and a surname. Notable people with the name include: Given name. Ambrosius Alexandrinus, a Latinization of the name of Ambrose of Alexandria (before 212 – c.250), Egyptian theologian and saint. Ambrose (Aurelius Ambrosius) (c. 340–397), bishop of Milan and saint. Ambrosius of Optino (1812–1891), Russian Orthodox monk and saint. Ambrosius Gudko (1867–1918), Russian Orthodox bishop and saint. Ambrosius Aurelianus, fifth-century war leader of the Romano-British.
https://en.wikipedia.org/wiki/Ambrosius