Sosipatra of Ephesus (4th c. CE) was the Neoplatonist philosopher-mystic of Pergamum — a major figure of late Hellenic philosophy who taught alongside Aedesius, with prophetic powers ascribed to her by Eunapius.
Featured in Eunapius's Lives of the Sophists.
Sosipatra does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Sosipatra reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.