Question: What was the language Auctor comes from during the era of Fastrada's spouse later known as?

Knowledge 1: Fastrada
Fastrada became the third wife of Charlemagne, marrying him in October 783 at Worms, Germany, a few months after Queen Hildegard’s death. A probable reason behind the marriage was to solidify a Frankish alliance east of the Rhine when Charles was still fighting the Saxons. [SEP] Knowledge 2: Auctor
Auctor is Latin for author or originator. The term is used in Scholasticism for a "renowned scholar", and in biological taxonomy for the scientist describing a species or other taxon. The term is widely replaced by author in English-language works. [SEP] Knowledge 3: Middle Ages
Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the "Carolingian Renaissance". Literacy increased, as did development in the arts, architecture and jurisprudence, as well as liturgical and scriptural studies. The English monk Alcuin (d. 804) was invited to Aachen and brought the education available in the monasteries of Northumbria. Charlemagne's chancery—or writing office—made use of a new script today known as Carolingian minuscule,[M] allowing a common writing style that advanced communication across much of Europe. Charlemagne sponsored changes in church liturgy, imposing the Roman form of church service on his domains, as well as the Gregorian chant in liturgical music for the churches. An important activity for scholars during this period was the copying, correcting, and dissemination of basic works on religious and secular topics, with the aim of encouraging learning. New works on religious topics and schoolbooks were also produced. Grammarians of the period modified the Latin language, changing it from the Classical Latin of the Roman Empire into a more flexible form to fit the needs of the church and government. By the reign of Charlemagne, the language had so diverged from the classical that it was later called Medieval Latin.
Knowledge 1: Fastrada
Fastrada became the third wife of Charlemagne, marrying him in October 783 at Worms, Germany, a few months after Queen Hildegard’s death. A probable reason behind the marriage was to solidify a Frankish alliance east of the Rhine when Charles was still fighting the Saxons. [SEP] Knowledge 2: Middle Ages
Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the "Carolingian Renaissance". Literacy increased, as did development in the arts, architecture and jurisprudence, as well as liturgical and scriptural studies. The English monk Alcuin (d. 804) was invited to Aachen and brought the education available in the monasteries of Northumbria. Charlemagne's chancery—or writing office—made use of a new script today known as Carolingian minuscule,[M] allowing a common writing style that advanced communication across much of Europe. Charlemagne sponsored changes in church liturgy, imposing the Roman form of church service on his domains, as well as the Gregorian chant in liturgical music for the churches. An important activity for scholars during this period was the copying, correcting, and dissemination of basic works on religious and secular topics, with the aim of encouraging learning. New works on religious topics and schoolbooks were also produced. Grammarians of the period modified the Latin language, changing it from the Classical Latin of the Roman Empire into a more flexible form to fit the needs of the church and government. By the reign of Charlemagne, the language had so diverged from the classical that it was later called Medieval Latin. [SEP] Knowledge 3: Abraham & Straus
BULLET::::- 1900's - Federated Department Stores, Inc. was formed in 1900 as a holding company by several family-owned department stores, including Abraham & Straus, F&R Lazarus & Co. (along with its Cincinnati-based subsidiary, Shillito's), and Filene's of Boston. Corporate offices established in Columbus, Ohio, later moved to Cincinnati. In 1992, Federated Department Stores merges with Allied Stores Corporation. The A&S and Jordan Marsh divisions were consolidated, forming the A&S/Jordan Marsh division, headquartered in Brooklyn, NY. Early in the new year, Macy's files for bankruptcy protection under Chapter 11. In 1994 the Federated Department Stores acquired the now bankrupt R.H. Macy & Company and combines Macy's, headquartered in New York City, with A&S/Jordan Marsh. In 1995, the name Abraham & Straus is dropped in favor of the more widely known name Macy's, and Macy's East is formed. Other A&S locations were converted to Stern's.
Knowledge 1: Fastrada
Fastrada became the third wife of Charlemagne, marrying him in October 783 at Worms, Germany, a few months after Queen Hildegard’s death. A probable reason behind the marriage was to solidify a Frankish alliance east of the Rhine when Charles was still fighting the Saxons. [SEP] Knowledge 2: Middle Ages
Charlemagne's court in Aachen was the centre of the cultural revival sometimes referred to as the "Carolingian Renaissance". Literacy increased, as did development in the arts, architecture and jurisprudence, as well as liturgical and scriptural studies. The English monk Alcuin (d. 804) was invited to Aachen and brought the education available in the monasteries of Northumbria. Charlemagne's chancery—or writing office—made use of a new script today known as Carolingian minuscule,[M] allowing a common writing style that advanced communication across much of Europe. Charlemagne sponsored changes in church liturgy, imposing the Roman form of church service on his domains, as well as the Gregorian chant in liturgical music for the churches. An important activity for scholars during this period was the copying, correcting, and dissemination of basic works on religious and secular topics, with the aim of encouraging learning. New works on religious topics and schoolbooks were also produced. Grammarians of the period modified the Latin language, changing it from the Classical Latin of the Roman Empire into a more flexible form to fit the needs of the church and government. By the reign of Charlemagne, the language had so diverged from the classical that it was later called Medieval Latin. [SEP] Knowledge 3: Victorian era
Victorian era 1837 -- 1901 Queen Victoria by Bassano (1887) Preceded by Regency era Followed by Edwardian era Monarch Victoria Leader (s) Lord Melbourne Sir Robert Peel Lord John Russell Lord Derby Lord Aberdeen Lord Palmerston Benjamin Disraeli William Ewart Gladstone Lord Salisbury Lord Rosebery

Answer: Medieval Latin