They never really happened due to the Pope's relocation to Paris, and since the Holy Roman Emperor won the Investiture Controversy and no great Western schism ever occurred. The Catholic church has also stayed relatively unified, due to their being no pressing conflict against Muslim nations. 

I have a lot of the lore written or at least partially written, including a broad history of how the Byzantines recovered their empire and the butterfly effects this had on the rest of the Western world. I'll definitely include the rest of the lore when this RP gets enough interest, but in the meantime I don't mind any questions!