Final answer:
The supporters of Pope Urban II undertook the Crusades to liberate Jerusalem, motivated by religious fervor and the desire to assist Christians in the Middle East. The Crusaders were driven by the goal of reclaiming Jerusalem from Muslim control, which led to a series of conflicts known as the Crusades, with significant impact on the region's history.
Step-by-step explanation:
The supporters in question refer to the participants of the Crusades, specifically the Europeans who undertook the military campaigns directed by Pope Urban II. Pope Urban II, with the objective to liberate Jerusalem and assist Christians in the Middle East, called for action that resulted in violent and extensive military expeditions. These Crusaders were incentivized not only by religious fervor but also by the lure of adventure, potential wealth, and the possibility of gaining land. They marched towards Jerusalem with the intent to reclaim it from Muslim control. This marked the start of a series of conflicts known as the Crusades, which spanned centuries and had lasting impacts on the political and religious dynamics of the region.
The Crusaders' action over the ruler of Jerusalem was driven by a combination of religious motivations and the aim to assist the Byzantine emperor. However, over time, the movement evolved into a broader conflict involving various European powers and the Muslim world. This period in history is notable for its cultural and religious clashes, as well as for the eventual impact it had on shaping geopolitical boundaries and the relations between Christian and Muslim nations.