Cross-posted in another thread by G_D_B.
Medieval Christian views on Muhammad (Islamophobia origins from distant past)
During the Early Middle Ages, Christendom largely viewed Islam as a Christological heresy and Muhammad as a false prophet. By the Late Middle Ages, Islam was more typically grouped with heathenism, and Muhammad was viewed as inspired by the devil. A more relaxed or benign view of Islam only developed in the modern period, after the Islamic empires ceased to be an acute military threat to Europe.
The earliest documented Christian knowledge of Muhammad stems from Byzantine sources, written shortly after Muhammad's death in 632. With the Crusades of the High Middle Ages, and the wars against the Ottoman Empire during the Late Middle Ages, the Christian reception of Muhammad became more polemical, moving from the classification as a heretic to depiction of Muhammad as a servant of Satan or as the Antichrist, who will be suffering tortures in Hell.
Early Middle Ages
The earliest written Christian knowledge of Muhammad stems from Byzantine sources, written shortly after Muhammad's death in 632. In the anti-Jewish polemic the Teaching of Jacob, a dialogue between a recent Christian convert and several Jews, one participant writes that his brother "wrote to [him] saying that a deceiving prophet has appeared amidst the Saracens".
Knowledge of Muhammad was available in Christendom from after the early expansion of his religion and, later, the translation of a polemical work by John of Damascus, who used the phrase "false prophet in "Heresies in Epitome: How They Began and Whence They Drew Their Origin.". According to the Encyclopædia Britannica Christian knowledge of Muhammad's life "was nearly always used abusively".Another influential source was the Epistolae Saraceni or the “Letters of a Saracen” written by an Oriental Christian and translated into Latin from Arabic. From the 9th century onwards, highly negative biographies of Muhammad were written in Latin, such as the one by Álvaro of Córdoba proclaiming him the Antichrist.
High Middle Ages
In the 11th century Petrus Alphonsi, a Jew who converted to Christianity, was another Mozarab source of information on Muhammad.Later during the 12th century Peter the Venerable, who saw Muhammad as the precursor to the Antichrist and the successor of Arius,ordered the translation of the Quran into Latin (Lex Mahumet pseudoprophete) and the collection of information on Muhammad so that Islamic teachings could be refuted by Christian scholars.
During the 13th century European biographers completed their work on the life of Muhammad in a series of works by scholars such as Peter Pascual, Riccoldo da Monte di Croce, and Ramon Llull in which Muhammad was depicted as an Antichrist while Islam was shown to be a Christian heresy. The fact that Muhammad was unlettered, that he married a wealthy widow, that in his later life he had several wives, that he was involved in several wars, and that he died like an ordinary person in contrast to the Christian belief in the supernatural end of Jesus' earthly life were all arguments used to discredit Muhammad.
Medieval scholars and churchmen held that Islam was the work of Muhammad who in turn was inspired by Satan.Kenneth Setton wrote that Muhammad was frequently calumniated and made a subject of legends taught by preachers as fact. For example, in order to show that Muhammad was the anti-Christ, it was asserted that Muhammad died not in the year 632 but in the year 666 – the number of the beast – in another variation on the theme the number "666" was also used to represent the period of time Muslims would hold sway of the land. A verbal expression of Christian contempt for Islam was expressed in turning his name from Muhammad to Mahound, the "devil incarnate". According to one version after falling into a drunken stupor he had been eaten by a herd of swine, and this was ascribed as the reason why Muslims proscribed consumption of alcohol and pork. In another account of the alcohol ban, Muhammad learns about the Bible from a Jew and a heretical Arian monk. Muhammad and the monk get drunk and fall asleep. The Jew kills the monk with Muhammad's sword. He then blames Muhammad, who, believing he has committed the crime in a drunken rage, bans alcohol.
Leggenda di Maometto is another example of such a story. In this version, as a child Muhammad was taught the black arts by a heretical Christian villain who escaped imprisonment by the Christian Church by fleeing to the Arabian Peninsula; as an adult he set up a false religion by selectively choosing and perverting texts from the Bible to create Islam. It also ascribed the Muslim holiday of Friday "dies Veneris" (day of Venus), as against the Jewish (Saturday) and the Christian (Sunday), to his followers' depravity as reflected in their multiplicity of wives.A highly negative depiction of Muhammad as a heretic, false prophet, renegade cardinal or founder of a violent religion also found its way into many other works of European literature, such as the chansons de geste, William Langland's Piers Plowman, and John Lydgate's The Fall of the Princes .
The Divine Comedy
In Dante Alighieri's Divine Comedy, Muhammad is in the ninth ditch of Malebolge, the eighth realm, designed for those who have caused schism; specifically, he was placed among the Sowers of Religious Discord. Muhammad is portrayed as split in half, with his entrails hanging out, representing his status as a heresiarch (Canto 28):
No barrel, not even one where the hoops and staves go every which way, was ever split open like one frayed Sinner I saw, ripped from chin to where we fart below.
His guts hung between his legs and displayed His vital organs, including that wretched sack Which converts to shit whatever gets conveyed down the gullet.
As I stared at him he looked back And with his hands pulled his chest open, Saying, "See how I split open the crack in myself! See how twisted and broken Mohammed is! Before me walks Ali, his face Cleft from chin to crown, grief–stricken."
This scene is frequently shown in illustrations of the Divine Comedy. Muhammad is represented in a 15th-century fresco Last Judgment by Giovanni da Modena and drawing on Dante, in the San Petronio Basilica in Bologna,[19] as well as in artwork by Salvador Dalí, Auguste Rodin, William Blake, and Gustave Doré.
A more positive interpretation appears in the 13th-century Estoire del Saint Grail, the first book in the vast Matter of Britain, the Lancelot-Grail. In describing the travels of Joseph of Arimathea, keeper of the Holy Grail, the author says that most residents of the Middle East were pagans until the coming of Muhammad, who is shown as a true prophet sent by God to bring Christianity to the region. This mission however failed when Muhammad's pride caused him to alter God's wishes, thereby deceiving his followers. Nevertheless, Muhammad's religion is portrayed as being greatly superior to paganism.
Later Presentations
The depiction of Islam in the Travels of Sir John Mandeville is also relatively positive, though with many inaccurate and mythical features. It is said that Muslims are easily converted to Christianity because their beliefs are already so similar in many ways, and that they believe that only the Christian revelation will last until the end of the world. The moral behavior of Muslims at the time is shown as superior to that of Christians, and as a standing reproach to Christian society.
Depictions of Muhammad in the form of picaresque novel began to appear from the 13th century onward, such as in Alexandre du Pont's Roman de Mahom, the translation of the Mi'raj, the Escala de Mahoma (“The Ladder of Muhammad”) by the court physician of Alfonso X of Castile and León and his son.
Medieval European literature often referred to Muslims as "infidels" or "pagans", in sobriquets such as the paynim foe. These depictions such as those in The Song of Roland represent Muslims worshiping Muhammad (spelt e.g. 'Mahom' and 'Mahumet') as a god, and depict them worshiping various deities in the form of "idols", ranging from Apollyon to Lucifer, but ascribing to them a chief deity known as "Termagant".
When the Knights Templar were being tried for heresy reference was often made to their worship of a demon Baphomet, which was notable by implication for its similarity to the common rendition of Muhammad's name used by Christian writers of the time, Mahomet.
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Taken and edited by me from wikipedia. Pls share.