This is the entry in Regions & Provinces which works fine:
Code:
recruit_pool "NE Bodyguard" 1 0.1 1 0 requires factions { ireland, sweden, england, scotland, france, hre, denmark, poland, hungary, normans, }
recruit_pool "SE Bodyguard" 1 0.1 1 0 requires factions { spain, portugal, milan, venice, papal_states, sicily, }
recruit_pool "EE Bodyguard" 1 0.1 1 0 requires factions { russia, saxons, }
recruit_pool "Greek Bodyguard" 1 0.1 1 0 requires factions { byzantium, armenia, }
recruit_pool "ME Bodyguard" 1 0.1 1 0 requires factions { mali, moors, egypt, turks, hedjaz, }
recruit_pool "Mongol Bodyguard" 1 0.1 1 0 requires factions { mongols, timurids, cumans, }
recruit_pool "Aztec Bodyguard" 1 0.1 1 0 requires factions { aztecs, }
Disregard the custom factions.