Few new random events ideas:
“Castle Annex” (castles are ralely built, so I think you could have some pretty powerful events connected to them)
Trigger: Heridertiary Rule civic and city with Castle
Heir of the royal family wishes to expand his summer residence castle.
1: Good for him. He should take care of it alone.: Nothing happens.
2: Offer assistance and assing best stonemasons and artists to this task: Pay some

. 66% chance for free Engineer or Artist specialist in that city.
3: This castle should be the crowning achievement of our royal architect. Our heir deserves no less.: Pay many more

. 66% chance for free settled Great Engineer or Great Artist in that city.
“Conversions and confiscations” (Inspired by what happened to Hagia Sophia)
Trigger: Theocracy civic. City with state religion #1, but without state religion temple/cathedral and other religion #2 with temple/cathedral.
Fallowers of religion #1 demand a place of worship. They are about to clash with Religion #2 citizens of [City] over control of their temple/cathedral.
1: Leave everything to God and mob: Pay nothing. Temporary 1

. Religion Temple/Cathedral #2 is destroyed.
2: Expel the indifels from [city]: Pay some

. Temporary 1

. Religion #2 Temple/Cathedral becomes Religion #1 Temple/Cathedral. Religion #2 is erased from city.
3: Arrange for relatively peaceful takeover and compensate: Pay some more

. Religion #2 Temple/Cathedral becomes Religion #1 Temple/Cathedral.
“Gladiator Uprising” (this is inspired by Spartacus and provides and alternative for normal slave rebellions. This event needs more work)
Trigger: Slavery civic and city with Colosseum
1: That is bad, isn’t it? City garnison should deal with it: Pay nothing. 1 temporary

. 1 turn of city revolt. -1 city pop. 66% chances of 1 (more?) barbarian swordmen/maceman with combat IV spawning next to city.
2: Immidiately quench the rebellion with all avaible forces: Pay some

. 1 turn of city revolt. -1 city pop. 66% chances of destroyed Colosseum.
“Patriotic Songs”
Trigger: Nationalism or Military Tradition. City with Theatre.
"Rule, [nation]! rule the waves:
1: "[nationality] never will be slaves.”: -25% war wearines for Theatre in city.
Please note that english is not my native language and event descriptions surely need rewriting.
Do you like any of my events?