Just won as Lombardy--I needed 150 papal favor points to win on Prince (jumped from 149 to 152), although I randomly got another 10 at the end for a grand total of 162. Justinian beat up on me at the beginning, and then started vassalizing the eastern side of the map. Eleanor, after I was invading her, ran to Justinian as a vassal to escape doom, but I had enough cities to build Christian Temples/Monasteries/Cathedrals in to win by that point.
The key is to use those crossbows in your stacks--it is one of the best units in the game (heavies have 10 Str, 1 First Strike, +50% vs. melee). And, being that I led in papal favor all game, I had something like 15 Papal Pikemen by the end, which are awesome units (8 Str, +25% city defense, +35% vs. melee, +100% vs. mounted). Good diplomacy always helps...I got something like 20 favor points just by staying at war with the Muslims the entire time and using my caravels to pick off their ships. Not a real big investment for that much favor and free papal pikemen.
The key is to use those crossbows in your stacks--it is one of the best units in the game (heavies have 10 Str, 1 First Strike, +50% vs. melee). And, being that I led in papal favor all game, I had something like 15 Papal Pikemen by the end, which are awesome units (8 Str, +25% city defense, +35% vs. melee, +100% vs. mounted). Good diplomacy always helps...I got something like 20 favor points just by staying at war with the Muslims the entire time and using my caravels to pick off their ships. Not a real big investment for that much favor and free papal pikemen.