Queen Procipinee has the summoner trait, plus Air / Life / Water spellbooks.  The only summoner spell in those three books is the water elemental, which quite frankly is pretty crappy.  So she can summon the basic warg, plus water elementals.  Why bother being a summoner in this case?  I just don't see it being a viable trait without a serious investment in either Fire, Earth or both.

You could say, "Well Pariden can buy earth and fire spellbooks!"  Yes this is true, but first you have to research Sorcery and then improve each skill from grade I to grade IV.  That means you need to gain four perfect levels AFTER your research has made this route even possible to you.  

To really rock as a summoner you need Summoning III and Fire or Earth IV.  To achieve this as Queen Procipinee you would need to get Path of the Mage @ L4, and then either Summoner (I-II-III) or Fire/Earth (II-III-IV) every level from L4 to L10.  Unless you're doing a lot of saving and reloading to break the system this is pretty unlikely.  Given the slow rate at which heroes level after all of the miscellaneous critters have been cleared out I don't think this is truly viable.

Solution - more summoner spells?  Different faction trait?  Water Elementals more studly?  Frankly the best thing we can do right now is to leave the Queen at home until you research Sorcery, and then send her out into the world.