hunt_sighting_event_trigger

hunt_sighting_event_trigger = {
	is_available_adult = yes
	is_landless_adventurer = no
	NOT = { has_character_flag = recent_hunt_sighting }
	trigger_if = {
		limit = { is_landed = no }
		NOT = { domicile.domicile_location ?= province:496 }
	}
	OR = {
		court_position:master_of_hunt_court_position ?= { is_available_adult = yes }
		court_position:huntperson_camp_officer ?= { is_available_adult = yes }
		any_vassal_or_below = {
			is_available_adult = yes
			has_trait = lifestyle_hunter
		}
		any_courtier = {
			is_available_adult = yes
			has_trait = lifestyle_hunter
		}
	}
}

As written in game/common/scripted_triggers/00_hunt_triggers.txt.