Peter Abelard
Peter Abelard (/ˈæb.ə.lɑrd/; Latin: Petrus Abaelardus or Abailardus; French: Pierre Abélard, [a.be.laːʁ]; 1079 – 21 April 1142) was a medieval French scholastic philosopher, theologian and pre...
Peter Abelard - Wikipedia
Ibn al-'Awwam
Ibn al-Awwam (ابن العوام) was an Arab agriculturist who flourished at Seville in southern Spain in the later 12th century. He wrote a lengthy handbook on agriculture entitled in Arabic Kitāb al-Filāḥa...
Ibn al-'Awwam - Wikipedia
William of Tyre
William of Tyre (c. 1130 – 29 September 1186) was a medieval prelate and chronicler. As archbishop of Tyre, he is sometimes known as William II to distinguish him from a predecessor, William of Maline...
William of Tyre - Wikipedia
Al-Khazini
Abu al-Fath Abd al-Rahman Mansour al-Khāzini or simply Abu al-Fath Khāzini (Arabic: أبو الفتح الخازني‎, Persian: ابولفتح خازنی‎) (flourished 1115–1130) was a Muslim astronomer of Persi...
Da'ud Abu al-Fadl
Da'ud Abu al-Fadl (1161–1242) was a Karaite Jewish physician who lived in Egypt in the twelfth century CE. He born at Cairo in 1161 and died there about 1242. Having studied medicine under the Jewish ...
Embrico of Mainz
Embrico of Mainz was a twelfth-century scholar and the author of the Vita Mahumeti. Embrico wrote the Vita in verse, modelled on the verse hagiography of contemporaries such as Hildebert of Le Mans. W...
Hugo Falcandus
Hugo Falcandus was a historian who chronicled the reign of William I of Sicily and the minority of his son William II in a highly critical work entitled The History of the Tyrants of Sicily (or Liber ...
Henrik Harpestræng
Henrik Harpestræng (died 2 April 1244) was a Danish botanical and medical author. He was a canon at the Roskilde Cathedral. His name literally means harp string.His greatest work was an urtebog (book ...
Ibn Hubal
Muhadhdhib al-Dīn Abūʼl-Hasan ʻAlī ibn Ahmad Ibn Hubal (Arabic: مهذب الدين أبي الحس علي بن أحمد ابن هبل‎) known as Ibn Hubal (Arabic: ابن هبل‎) (c. 1122 - 1213) was an Arab physici...
Omar Khayyám
Omar Khayyám; born Ghiyāth ad-Dīn Abu'l-Fatḥ ʿUmar ibn Ibrāhīm al-Khayyām Nīshāpūrī (/ˈoʊmɑr kaɪˈjɑːm, -ˈjæm, ˈoʊmər/; Persian: ‏غیاث ‌الدین ابوالفتح عمر ابراهیم خیام نیشابورﻯ‎, [xæjˈjɒːm]; 18 M...
Omar Khayyám - Wikipedia
Sharaf al-Dīn al-Ṭūsī
Sharaf al-Dīn al-Muẓaffar ibn Muḥammad ibn al-Muẓaffar al-Ṭūsī (died 1213/4) was a Persian mathematician and astronomer of the Islamic Golden Age (during the Middle Ages).
Tusi was born in Tus, Ir...
Ibn Tufail
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; Latinize...
Nikephoros Bryennios the Younger
Nikephoros Bryennios (or Nicephorus Bryennius) (Greek: Νικηφόρος Βρυέννιος, Nikēphoros Bryennios) (1062–1137), Byzantine general, statesman and historian, was born at Orestias (Orestiada, Adrianople) ...
Nikephoros Bryennios the Younger - Wikipedia
Maimonides
Mosheh ben Maimon (Hebrew: משה בן-מימון‎), or Mūsā ibn Maymūn (Arabic: موسى بن ميمون‎), acronymed RaMBaM (Hebrew: רמב"ם‎ – for "Rabbeinu Mosheh Ben Maimon", "Our Rabbi/Teacher Mo...
Maimonides - Wikipedia
Pandulf of Pisa
Pandulf of Pisa was a twelfth-century Italian Cardinal, and biographer of several contemporary popes; these biographies belonged to the Liber Pontificalis. He was nephew of Hugo of Alatri. Works attr...
Pandulf of Pisa - Wikipedia
Fan Chengda
Fan Chengda (Chinese: 范成大; pinyin: Fàn Chéngdà; Wade–Giles: Fan Ch'engta, 1126–1193), courtesy name Zhineng (致能), was one of the best-known Chinese poets of the Song Dynasty (960-1279 AD),...
Herrad of Landsberg
Herrad of Landsberg (c. 1130 – July 25, 1195) was a 12th-century Alsatian nun and abbess of Hohenburg Abbey in the Vosges mountains. She is known as the author of the pictorial encyclopedia Hortus del...
Herrad of Landsberg - Wikipedia
Ibn Zuhr
Ibn Zuhr (Arabic: ابن زهر‎; 1094–1162), traditionally known by his Latinized name of Avenzoar, was a Muslim Arab physician and surgeon. He was born at Seville in mediæval Andalusia (pr...
Nur ad-Din al-Bitruji
Nur ad-Din al-Bitruji (also spelled Nur al-Din Ibn Ishaq Al-Betrugi and Abu Ishâk ibn al-Bitrogi; another spelling is al Bidrudschi) (known in the West by the Latinized name of Alpetragius) (died ca. ...
Brahmadeva
Brahmadeva (1060–1130) was an Indian mathematician. He was the author of Karanaprakasa, which is a commentary on Aryabhata's Aryabhatiya. Its contents deal partly with trigonometry and its application...
Adelard of Bath
Adelard of Bath (Latin: Adelardus Bathensis) (c. 1080 – c. 1152) was a 12th-century English natural philosopher. He is known both for his original works and for translating many important Greek and Ar...
Abu Bakr al-Hassar
Al-Hassar or Abu Bakr Muhammad ibn Abdallah ibn Ayyash al-Hassar was a Muslim mathematician from Morocco, living in the 12th century. He is the author of two books Kitab al-bayan wat-tadhkar (Book of ...
Áed Ua Crimthainn
Áed Ua Crimthainn (fl. 12th century), also called Áed mac Crimthainn, was abbot and coarb of Terryglass (Tir dá Glas), near Lough Derg in County Tipperary, Ireland. He was the principal scribe of the ...
Áed Ua Crimthainn - Wikipedia
Máel Muire mac Céilechair
Máel Muire ("servant of Mary") mac Céilechair (died 1106) was an Irish cleric of the monastery of Clonmacnoise, County Offaly, and one of the principal scribes of the manuscript Lebor na hUidre.He cam...