retake_eastern_provinces_decision_effect

retake_eastern_provinces_decision_effect = {
	save_scope_as = root_scope
	add_trait = augustus
	give_nickname = nick_the_great
	change_influence = {
		value = massive_influence_gain
		multiply = 5
	}
	custom_tooltip = {
		text = every_county_in_theodosian_region
		title:k_bulgaria = { set_de_jure_liege_title = title:e_byzantium }
		title:k_epirus = { set_de_jure_liege_title = title:e_byzantium }
		title:k_hellas = { set_de_jure_liege_title = title:e_byzantium }
		title:k_thessalonika = { set_de_jure_liege_title = title:e_byzantium }
		title:k_krete = { set_de_jure_liege_title = title:e_byzantium }
		title:k_cyprus = { set_de_jure_liege_title = title:e_byzantium }
		title:k_nikaea = { set_de_jure_liege_title = title:e_byzantium }
		title:k_anatolia = { set_de_jure_liege_title = title:e_byzantium }
		title:k_pontus = { set_de_jure_liege_title = title:e_byzantium }
		title:k_syria = { set_de_jure_liege_title = title:e_byzantium }
		title:k_jerusalem = { set_de_jure_liege_title = title:e_byzantium }
		title:k_egypt = { set_de_jure_liege_title = title:e_byzantium }
	}
	add_legitimacy = {
		value = massive_legitimacy_gain
		multiply = 2
	}
	dynasty ?= {
		add_dynasty_modifier = retaken_eastern_provinces_modifier
		add_dynasty_prestige = 2500
	}
	if = {
		limit = {
			culture = { has_cultural_parameter = holds_triumphs }
		}
		custom_tooltip = {
			text = free_triumph_tooltip
			add_character_flag = free_triumph_flag
		}
	}
	gain_legitimizing_legend_seed_tooltip_effect = yes
	hidden_effect = { legend_seed_great_deed_dynasty_effect = yes }
	every_vassal = {
		custom = custom.every_admin_vassal
		limit = { government_has_mechanic = administrative }
		add_opinion = {
			target = scope:root_scope
			modifier = admiration_opinion
			opinion = 20
		}
	}
}

As written in game/common/scripted_effects/00_major_decisions_scripted_effects_3.txt.