An army cannot exist without people to staff it and considering that the crusades attacked Islam on multiple fronts, a lot of manpower was required to retake Christian land. For example, since most families during the Middle Ages had multiple children, since infant mortality rates were still high, it meant that most teenagers or young adults could leave their family farm or business behind without worrying about it. Furthermore, noble families usually let only the first son inherit the wealth and title, causing second or even third sons to find another way to gain riches and renown, which the crusades promised in spades2. However, this alone is not the cause for Latin Christians to go on a crusade. as there would need to be something that can bind these people of such different cultures to a common goal, and in the eleventh century that event would
An army cannot exist without people to staff it and considering that the crusades attacked Islam on multiple fronts, a lot of manpower was required to retake Christian land. For example, since most families during the Middle Ages had multiple children, since infant mortality rates were still high, it meant that most teenagers or young adults could leave their family farm or business behind without worrying about it. Furthermore, noble families usually let only the first son inherit the wealth and title, causing second or even third sons to find another way to gain riches and renown, which the crusades promised in spades2. However, this alone is not the cause for Latin Christians to go on a crusade. as there would need to be something that can bind these people of such different cultures to a common goal, and in the eleventh century that event would