12th-century philosophers

Gilbert de la Porrée (after 1085 – 4 September 1154), also known as Gilbert of Poitiers, Gilbertus Porretanus or Pictaviensis, was a scholastic logician and theologian.

Thierry of Chartres (Theodoricus Chartrensis) or Theodoric the Breton (Theodericus Brito) (died before 1155, probably 1150) was a twelfth-century philosopher working at Chartres and Paris, France.

Dominicus Gundissalinus, also known as Domingo Gundisalvo (fl. c. 1150), may have been a converted Jew, and was the archdeacon of Segovia, Spain and a scholastic philosopher.

Herrad of Landsberg (c. 1130 – July 25, 1195) was a 12th-century Alsatian nun and abbess of Hohenburg Abbey in the Vosges mountains.

Peter Lombard, Peter the Lombard, Pierre Lombard or Petrus Lombardus, (c. 1096, Novara, Lombardy – 21/22 July 1160, Paris, France) was a scholastic theologian, Bishop of Paris, and author of Four Books of Sentences, which became the standard textbook of theology, for which he earned the accolade Magister Sententiarum.

Hugh of Saint Victor, C.

Richard of Saint Victor, C.

Guillaume de Champeaux (c. 1070 – 18 January 1121 in Châlons-en-Champagne), known in English as William of Champeaux and Latinised to Gulielmus de Campellis, was a French philosopher and theologian.

Anselm of Canterbury (Latin: Anselmus Cantuariensis; c. 1033 – 21 April 1109), also called Anselm of Aosta (Italian: Anselmo d'Aosta) after his birthplace and Anselm of Bec (French: Anselme du Bec) after his monastery, was a Benedictine monk, abbot, philosopher and theologian of the Catholic Church, who held the office of archbishop of Canterbury from 1093 to 1109.

Hildegard of Bingen, O.

Ioane Petritsi (Georgian: იოანე პეტრიწი) also referred as John Petritsi was a Georgian Neoplatonist philosopher of the 11th-12th century, active in the Byzantine Empire and Kingdom of Georgia, best known for his translations of Proclus, along with an extensive commentary.

Ibn Tufail (c. 1105 – 1185) (full Arabic name: أبو بكر محمد بن عبد الملك بن محمد بن طفيل القيسي الأندلسي Abu Bakr Muhammad ibn Abd al-Malik ibn Muhammad ibn Tufail al-Qaisi al-Andalusi; Latinized form: Abubacer Aben Tofail; Anglicized form: Abubekar or Abu Jaafar Ebn Tophail) was an Arab Andalusian Muslim polymath: a writer, novelist, Islamic philosopher, Islamic theologian, physician, astronomer, vizier, and court official.

Rabbi Moses ben Jacob ibn Ezra, known as Ha-Sallaḥ ("writer of penitential prayers") (Arabic: أبو هارون موسى بن يعقوب ابن عزرا‎‎, Abu Harun Musa bin Ya'acub ibn Ezra, Hebrew: משה בן יעקב הסלח אבן עזרא‎‎) was a Jewish, Spanish philosopher, linguist, and poet.

Zhu Xi or Chu Hsi (Chinese: 朱熹, October 18, 1130 – April 23, 1200) was a Song dynasty Confucian scholar who was the leading figure of the School of Principle and the most influential rationalist Neo-Confucian in China.

Ye Shi (simplified Chinese: 叶适; traditional Chinese: 葉適; pinyin: Yè Shì; Wade–Giles: Yeh Shih, 1150–1223), courtesy name Zhengze (正则), pseudonym Mr.

Bernard of Chartres (Bernardus Carnotensis) (died after 1124) was a twelfth-century French Neo-Platonist philosopher, scholar, and administrator.

Bernard of Clairvaux (Latin: Bernardus Claraevallensis), O.

Judah Halevi (also Yehuda Halevi or ha-Levi; Hebrew: יהודה הלוי and Judah ben Shmuel Halevi יהודה בן שמואל הלוי; Arabic: يهوذا اللاوي‎‎; c. 1075 – 1141) was a Spanish Jewish physician, poet and philosopher.

Adelard of Bath (Latin: Adelardus Bathensis) (c. 1080 – c. 1152) was a 12th-century English natural philosopher.

Fakhr al-Din al-Razi or Fakhruddin Razi (Persian: فخر الدين رازي‎‎) was a Sunni Muslim theologian and philosopher He was born in 1149 in Rey (in today's Iran), and died in 1209 in Herat (in today's Afghanistan).

Peter Abelard (/ˈæb.ə.lɑːrd/; Latin: Petrus Abaelardus or Abailardus; French: Pierre Abélard, pronounced: [a.be.laːʁ]; 1079 – 21 April 1142) was a medieval French scholastic philosopher, theologian and preeminent logician.

Bernardus Silvestris, also known as Bernard Silvestris and Bernard Silvester, was a medieval Platonist philosopher and poet of the 12th century.

Héloïse (/ˈɛloʊ.iːz/ or /ˈhɛloʊ.iːz/; French: [e.lɔ.iz]; 1090?/1100–1? – 16 May 1164) was a French nun, writer, scholar, and abbess, best known for her love affair and correspondence with Peter Abélard.

Walter of Mortagne (b. Mortagne, Flanders, c. 1100; d. Laon, 1174) was a Scholastic philosopher, and theologian.

Peter Helias (Latin: Petrus Helias or Helyas; c. 1100 – after 1166) was a medieval priest and philosopher.

Kim Bu-sik (1075–1151) was a statesman, general, Confucian scholar and writer during Korea's Goryeo period.

Ayn-al-Qużāt Hamadānī, also spelled Ain-al Quzat Hamedani or ʿAyn-al Qudat Hamadhani (1098–1131) (Persian: عین‌ القضات همدانی‎‎), full name: Abu’l-maʿālī ʿabdallāh Bin Abībakr Mohammad Mayānejī (Persian: ابوالمعالی عبدالله بن ابی‌بکر محمد میانجی‎‎), was a Persian jurisconsult, mystic, philosopher, poet and mathematician who was executed at the age of 33.

Ibn Rushd (Arabic: ابن رشد‎‎; April 14, 1126 – December 10, 1198), full name (Arabic: أبو الوليد محمد ابن احمد ابن رشد‎, translit. ʾAbū l-Walīd Muḥammad Ibn ʾAḥmad Ibn Rushd‎), often Latinized as Averroes (/əˈvɛroʊˌiːz/), was a medieval Andalusian polymath.