The 12th-century French writer Chrétien de Troyes, who added Lancelot and the Holy Grail to the story, began the genre of Arthurian romance that became a significant strand of medieval literature.

Another, later, source is the Vita Sancti Wilfrithi written by Eadmer, a 12th-century Anglo-Norman writer and monk from Canterbury.

Walter of Châtillon ( Latin Gualterus de Castellione ) was a 12th-century French writer and theologian who wrote in the Latin language.

While there is no consensus on the authenticity of the treatise, there is strong evidence to assume the work as a product of the 12th-century, by a writer imitating the allegorical style of Fulgentius.

Bregowine was later considered a saint, with a feast day of 26 August, although Florence of Worcester, a 12th-century writer, recorded his death date as 24 August.

William of Malmesbury, a 12th-century writer, states that Thomas finished the cathedral, and this is corroborated by the fact that Thomas was buried in the minster in 1100.

In early 12th-century al-Andalus, the Arabian philosopher, Ibn Tufail ( Abubacer ), wrote discussions on materialism in his philosophical novel, Hayy ibn Yaqdhan ( Philosophus Autodidactus ), while vaguely foreshadowing the idea of a historical materialism.

Moses Maimonides wrote that " by virtue of the existence of the Creator everything exists " and argues in his 12th-century Guide for the Perplexed ( 2: 13 ) that " time itself is part of creation " and that therefore, " when God is described as existing before the creation of the universe, the notion of time should not be understood in its normal sense.

The 12th-century scholar Ari Þorgilsson wrote in his book, Íslendingabók, that small bells, corresponding to those used by Irish monks, were found by the settlers.

Late in life he wrote a work on the great Roman families, wrongly identified with an extant poem De progenie Augusti Caesaris which bears the name of Messalla, but in fact is a 12th-century production.

In the 1830s-40s, he composed two major works on the early history of Georgia – " ისტორია დაწყებითგან ივერიისა, ესე იგი გიორგიისა, რომელ არს სრულიად საქართველოჲსა " ( 1832, History of Iberia or Georgia, that is All of Sakartvelo ) and " ისტორია ძველი კოლხიდისა " ( 1840, History of Ancient Colchis ) – and wrote commentaries to the 12th-century Georgian national epic " The Knight in the Panther's Skin " (" განმარტება პოემა ვეფხისტყაოსანისა ", 1843 ).

In a scholarly biography, Kavichakravarty Kamban, Mahavidwan R. Raghava Iyengar wrote in detail about this 12th-century poet.

Honorius Augustodunensis ( 1080-1154 ), commonly known as Honorius of Autun, was a very popular 12th-century Christian theologian who wrote prolifically on many subjects.

The 12th-century chronicler Eadmer, a monk at Canterbury, wrote much later that Thomas had resigned and surrendered his archiepiscopal symbols, but they were promptly returned to him by Lanfranc on the pope's orders.

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Geoffrey of Monmouth Latinised this to Caliburnus ( likely influenced by the medieval Latin spelling calibs of Classical Latin chalybs, from Greek " χάλυψ ", " steel "), the name of Arthur's sword in his 12th-century work Historia Regum Britanniae.

Category: 12th-century Latin writers

Category: 12th-century Latin writers

There is no guarantee that it significantly predates the 12th-century narrative tradition, where it is first attached to him in Ágrip and in Latin translation as sanguinea securis in the Historia Norwegiæ.

* Pamphilus ( play ), a 12th-century Latin comedy, see De tribus puellis

The frontispiece of an Adelard of Bath Latin translation of Euclid's Elements, c. 1309 – 1316 ; the oldest surviving Latin translation of the Elements is a 12th-century translation by Adelard from an Arabic version.

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

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

Category: 12th-century Latin writers

This is a 12th-century Latin source, but one believed to be based on much earlier materials ; it records a place near Dumbarton Rock named Ouania.

Ruthenia is the latinized version of Rus ’, a region in Eastern Europe inhabited by Slavs and the cradle of Kievan Rus ’, a 9th to 12th-century state that existed in the territories of modern-day Belarus, Ukraine, Russia and Eastern Poland.

Andreas Capellanus ( Capellanus meaning " chaplain ") was the 12th-century author of a treatise commonly known as De amore (" About Love "), and often known in English, somewhat misleadingly, as The Art of Courtly Love, though its realistic, somewhat cynical tone suggests that it is in some measure an antidote to courtly love.

In the spirit of Augustine's Confessions is the 12th-century Historia Calamitatum of Peter Abelard, outstanding as an autobiographical document of its period.

There is also a theory that the form was invented by the 12th-century poet Alexander of Paris.

SunWatch is a partially reconstructed 12th-century prehistoric American Indian village ; the village is organized around a central plaza dominated by wood posts forming an astronomical calendar.

Ivanhoe is a historical novel by Sir Walter Scott published in 1820, and set in 12th-century England.

* Merugud Uilix maicc Leirtis (" On the Wandering of Ulysses, son of Laertes ") is an eccentric Old Irish version of the material ; the work exists in a 12th-century AD manuscript that linguists believe is based on an 8th-century original.

The Old English poem Widsith ( 9th century ) refers briefly to his victorious single combat, a story which is related at length by the 12th-century Danish historians Saxo and Svend Aggesen.

The only information about him is contained in the 12th-century Russian Primary Chronicle, which states that Chuds, Slavs, Merias, Veses and Krivichs "… drove the Varangians back beyond the sea, refused to pay them tribute, and set out to govern themselves ".

The invention of the sestina is traditionally attributed to Arnaut Daniel, a mathematician and troubadour of 12th-century Provence.

The Genji Monogatari Emaki, is a late Heian era 12th-century handscroll, consisting of four scrolls, 19 paintings, and 20 sheets of calligraphy.

This 14th-century sovereign was named after the 12th-century Emperor Nijō, and go-( 後 ), translates literally as " later ;" and thus, he is sometimes called the " Later Emperor Nijō ".

Vaduz is said to be mentioned in historic 12th-century manuscripts as Farduzes.

A daughter Miriam / Maria is recorded by the 12th-century chronicler Michael the Syrian as married to Khosrau II.

* In an early 12th-century oath to Ramon Berenguer III, Count of Barcelona, this ruler is referred to as rector catalanicus ( as well as catalanicus heroes and dux catalanensis ).

This has led to a suggestion that the chapel is the last remnant of a square, stone keep, which would have formed the bulk of the 12th-century fortification.