How did it gain so much power? What problems did it face?

How did it gain so much power? What problems did it face? Response should be at least 300 words in length. Reference: McKay, J.P., Hill, B.D., Buckler, J., Crowston, C. H., Weisner-Hanks, M. E., & Perry, J. (2014). A History of western society: From antiquity to the enlightenment (11th ed., Vol 1). Boston, MA: Bedford/St. Martin’s.