How do you get Bells of Santiago with the console?

effect create_artifact_various_bells_santiago = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).

What if the owner can't benefit from Bells of Santiago?

They get Prestige +0.1/month instead.

Personal artifact · Trinket

Bells of Santiago

IllustriousUniqueHoly relicThe Fate of Iberia

Bells of Santiago is an illustrious trinket artifact in Crusader Kings III: Court grandeur baseline +3, Same Faith Opinion +10, Christian Opinion +10, Muslim Opinion -10, Piety per Powerful Vassal on the Council +0.1/month, Renown +0.5/month. Quality 100 and wealth 100; maximum durability 150, and it does not wear out. At game start it goes to the holder of Santiago (starts before 997.1.1) — needs The Fate of Iberia. It needs The Fate of Iberia. Patch 1.20.0.3, from game/common/scripted_effects/03_dlc_fp2_scripted_effects.txt.

Quick answers (3)

What does Bells of Santiago do in CK3?: Court grandeur baseline +3, Same Faith Opinion +10, Christian Opinion +10, Muslim Opinion -10, Piety per Powerful Vassal on the Council +0.1/month, Renown +0.5/month (patch 1.20.0.3).
How do you get Bells of Santiago with the console?: effect create_artifact_various_bells_santiago = { OWNER = root } — runs the scripted effect that makes it, for the character you play (debug mode).
What if the owner can't benefit from Bells of Santiago?: They get Prestige +0.1/month instead.

The illustrious Bells of Santiago de Compostela are a strong, simple, and above all loud reminder of the immutable spiritual authority of St. James.

Effects

Court grandeur baseline+3
Same Faith Opinion+10
Christian Opinion+10
Muslim Opinion-10
Piety per Powerful Vassal on the Council+0.1/month
Renown+0.5/month

For an owner who can't benefit from it

The template gives these instead of the effects above when its “can benefit” check fails:

Prestige+0.1/month

Who can benefit (can_benefit) (17 lines of game script)

christian_artifact_access_trigger = yes
trigger_if = {
	limit = {
		exists = struggle:iberian_struggle
	}
	custom_description = {
		text = involved_in_iberian_struggle_trigger
		any_character_struggle = {
			this = struggle:iberian_struggle
		}
	}
}
trigger_else = {
	culture = {
		has_cultural_pillar = heritage_iberian
	}
}

As written in game/common/artifacts/templates (fp2_santiago_bells_template).

Counts as a holy relic for (is_holy_relic) (6 lines of game script)

OR = {
	religion = religion:christianity_religion
	main_rite = {
		rite_has_parameter = christian_syncretic_actor
	}
}

As written in game/common/artifacts/templates (fp2_santiago_bells_template).

History and who has it

At game start: the holder of Santiago (starts before 997.1.1) — needs The Fate of Iberia.

How it is made

The game creates it with the scripted effect create_artifact_various_bells_santiago. In the console (how to open it), this gives it to the character you play:

effect create_artifact_various_bells_santiago = { OWNER = root }

Built from the effect's file; not run in the game by us.

Source: game/common/scripted_effects/03_dlc_fp2_scripted_effects.txt, common/modifiers (bells_of_santiago_modifier), common/artifacts/templates (fp2_santiago_bells_template) and the English localisation, Crusader Kings III 1.20.0.3.