This investigation aims to assess the influence of Christianity on the politics of the medieval era. The relevance of this topic cannot be overlooked, mainly because of its lasting impact on society. In medieval times, the Church acted as a second social system and was therefore directly linked to politics. Canon law, which represented the laws of the Church, was applied by Church officials within the community. This is an important example alluding to the idea that unlike the United States, where there is a separation between church and state; the government of medieval times was in direct association with the Christian Church. This investigation will closely examine the relationship between the Catholic Church and royalty in the Holy Roman Empire, France and Spain during the period from the 4th to the 13th centuries. This will be accomplished by reviewing medieval articles and Church-related primary sources that will be used to evaluate the research question. Word Count: 176Part “B” Summary of EvidenceThe Catholic Church and royalty worked hand in hand to promote each other to the people. of the state. It was the duty of kings, queens and nobles to promote the ideals of the Church and, conversely, it was the duty of the Church to promote the authority of royalty over the people. “According to the Catholic faith, salvation comes only through the Church; individuals cannot find salvation outside the institution. » In 852 CE, Spain was ruled by the Islamic people. Around this time, a hermit who was also a devoted Christian, named Isaac, went to the city of Cordoba, the capital of Islamic Spain, and declared Muhammad a false prophet. At the time, this act was punishable by law and he was executed for his...... middle of paper...... century A.D. The Church implemented social systems and eventually led to the light that the people wanted to follow. In turn, political leaders recognized the power of the Church despite the secularism of Spain and France; they were able to incorporate the Roman Catholic Church into their rule. The Holy Roman Empire was an example of an empire in which the Church was the political system, and thus political influence in this region is evident. Although religion was not always directly linked to medieval politics, Catholicism had a significant impact on government policy in Spain, France, and the Holy Roman Empire, supporting moral laws within society and creating a social hierarchy of the clergy. The influence of the Church during this time cannot be overlooked as it ultimately shaped an entire empire and led to the ideals we have today..