This investigation seeks to evaluate the influence of Christianity on the politics of the medieval era. The relevance of this topic cannot be overlooked mainly due to its lasting impact on society. In the Middle Ages the Church served as a second social system and was therefore directly related to politics. Canon law, which was the laws of the church, was enforced by church officials within the community. This is an important example that alludes to the idea that, unlike the United States where there is a separation of church and state; the government of the medieval era was in direct association with the Christian Church. This investigation will look closely at the relationship between the Catholic Church and the royal family in the Holy Roman Empire, France and Spain during the period between the 4th and 13th centuries. This will be accomplished by examining medieval articles and primary sources relating to the Church which will be used to evaluate the research question. Word Count: 176 Part “B” Evidence Summary The Catholic Church and the royals worked side by side 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 the royal family over the people. “According to the Catholic faith, salvation occurs only through the Church; individuals cannot find salvation outside the institution. ”In 852 AD, Spain was ruled by the Islamic people. During this time a hermit who was also a devout Christian named Isaac went to the city of Cordoba, the capital of Islamic Spain, and declared Muhammad a false prophet. At that time, this act was punishable by law and was executed for his...... middle of paper ......century AD The Church implemented social systems and ultimately guided the light that people wanted to follow. In turn, political leaders recognized the power of the Church and despite the secularism of Spain and France; they were able to incorporate the Roman Catholic Church into their government. The Holy Roman Empire was an example of an empire where the Church was the political system, and therefore the political influence in this region is evident. Although religion was not always directly related to medieval politics, Catholicism had a great impact on government policy in Spain, France, and the Holy Roman Empire, upholding moral laws within society and creating a social hierarchy of the clergy. The influence of the Church in this period cannot be overlooked because it ultimately shaped an entire empire and led to the ideals we have today..