How much did each crusade cost in the middle ages?

The cost of each crusade in the Middle Ages varied significantly, often depending on factors such as the scale of the campaign, the number of participants, and the duration of the expedition. For instance, the First Crusade (1096-1099) likely cost several million silver marks, while later crusades, like the Third Crusade (1189-1192), could reach upwards of 1 million marks, which was a substantial sum at the time. These costs included expenses for transportation, supplies, and equipment, often leading to financial strain on European kingdoms and their populations. Overall, the financial burden of the crusades contributed to various economic and political consequences in the regions involved.