Theano (philosopher)
6th-century BC Pythagorean philosopher

Theano (; Greek: Θεανώ) was a 6th-century BC Pythagorean philosopher. She has been called the wife or student of Pythagoras, although others see her as the wife of Brontinus. Her place of birth and the identity of her father is uncertain as well. Many Pythagorean writings were attributed to her in antiquity, including some letters and a few fragments from philosophical treatises, although these are all regarded as spurious by modern scholars.
Life
Little is known about the life of Theano, and the few details on her life from ancient testimony are contradictory. According to Porphyry, she came from Crete and was the daughter of Pythonax. In the catalog of Aristoxenus of Tarentum quoted by Iamblichus, she is the wife of Brontinus, and from Metapontum in Magna Graecia, while Diogenes Laertius reports a tradition from Hermesianax where she came from Crotone, was the daughter of Brontinus, married Pythagoras, and while some claim that after Pythagoras' passing, she took over his school, the evidence is overwhelmingly clear that was not the case.
Writings
Many writings were attributed to Theano in antiquity. The Suda attributes to her works with the titles Pythagorean Apophthegms, Advice to Women, On Pythagoras, On Virtue and Philosophical Commentaries, which have not survived. In addition, a short fragment attributed to her from a work titled On Piety (Peri eusebeias) is preserved in the Anthologium of Stobaeus.
“Theano (philosopher)” enters the record as 6th-century BC Pythagorean philosopher. Crown Archives preserves that source wording while asking what Theano, philosopher and 6th-century can confirm, complicate or overturn.
Why this record matters
“Theano (philosopher)” is worth following because a concise public description often conceals a longer documentary argument. Here, Theano, philosopher and 6th-century provides the most credible route into that argument.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated May 23, 2026. The linked authority identifier is Q235426. VIAF identifies the subject as 128587440. The Library of Congress control number is n88648425. 3 of 5 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Theano (philosopher)”, its source revision and the description used here.
- Expand the search: follow Theano (philosopher) primary sources, Theano (philosopher) archive and Theano research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Theano (philosopher)”?
- Which primary records establish identity, chronology and institutional ties?
- Which claims depend on a single source or contested interpretation?
Search terms from this dossier
This entry incorporates text from “Theano (philosopher)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.