An event for marrying a specific person off

[0yvind]

I am trying to create an event where Blæja (daughter of Ælla) is married off to (or made a consort of) one of Ragnarr's sons if and after Ælla is killed by them. Historically, she was married (or a concubine) to Sigurd Snake-in-the-eye, but I want to leave it open who she marries when playing from the 867 start.

So the goal is to make the event fire after Ælla is dead, and the trigger needs to be that she is unmarried or that she is a courtier/prisoner of one of them. Any already married sibling among the Ragnarr sons should instead of as a wife take her as a concubine.

Will this work?

# Marriage to Blaeja
narrative_event = {
    id = BLS.10
    title = EVTTITLE_BLS_10
    desc = EVTDESC_BLS_10
    picture = GFX_evt_marriage

    capable_only = yes
    prisoner = no
    has_dlc = "The Old Gods"

    is_triggered_only = yes

    trigger = {
        any_sibling = {
            is_married = no
        }
        character = 6861 # Blaeja
        NOT = { is_married = yes }
        father = {
            is_alive = no
            has_character_flag = aella_punished
        }
        OR = {
            host = {
                OR = {
                    character = 163108 # Björn Ironside
                    character = 163110 # Sigurd
                    character = 163111 # Ivar
                    character = 163112 # Halfdan
                    character = 163119 # Ubbe
                }
            }
        }
    }
    option = {
        name = EVTOPTA_BLS_10 # Marry her to Sigurd
        c_163110 = {
            limit = {
                is_married = no
                is_alive = yes
            }
            add_spouse = 6861
            prestige = 50
            if = {
                limit = {
                    is_married = yes
                }
                add_consort = 6861
            }
        }
    }
    option = {
        name = EVTOPTB_BLS_10 # Marry her to Ivar
        c_163111 = {
            limit = {
                is_married = no
                is_alive = yes
            }
            add_spouse = 6861
            prestige = 50
            if = {
                limit = {
                    is_married = yes
                }
                add_consort = 6861
            }
        }
    }
    option = {
        name = EVTOPTC_BLS_10 # Marry her to Halfdan
        c_163112 = {
            limit = {
                is_married = no
                is_alive = yes
            }
            add_spouse = 6861
            prestige = 50
            if = {
                limit = {
                    is_married = yes
                }
                add_consort = 6861
            }
        }
    }
    option = {
        name = EVTOPTD_BLS_10 # Marry her to Ubbe
        c_163119 = {
            limit = {
                is_married = no
                is_alive = yes
            }
            add_spouse = 6861
            prestige = 50
            if = {
                limit = {
                    is_married = yes
                }
                add_consort = 6861
            }
        }
    }
    option = {
        name = EVTOPTE_BLS_10 # Let her go
        prestige = -50
        piety = 50
    }
}

I've based this off of the files "misc_old_gods_events" and "cm_charlemagne_story_events". I am not sure if I've quite understood the use of limits. I am also wondering if this event simultaneously will fire for all four of the playable characters, possibly resulting in conflicting choices.