Final answer:
Corruption in the church in the 13th and 14th centuries was caused by a decline in religious fervor, lack of financial resources, political interference, and doctrinal disputes.
Step-by-step explanation:
Corruption was found in the church in the 13th and 14th centuries due to a combination of factors. There was a decline in religious fervor, lack of financial resources, political interference, and doctrinal disputes. The decline in religious fervor allowed for unethical behavior to occur within the church, while the lack of financial resources may have driven some members of the clergy to engage in corrupt practices. Political interference and power struggles also played a role, as monarchs and secular rulers assert their influence over the church. Finally, doctrinal disputes contributed to the divisions within the church, leading to corruption.
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