pole to , ▁second ▁son ▁of ▁Supp o ▁I , ▁and ▁her ▁pat ernal ▁a unt ▁was ▁Engel berga , ▁wife ▁of ▁Louis ▁II ▁of ▁Italy . ▁ ▁She ▁married ▁Ber eng ar , ▁marg ra ve ▁of ▁Fri uli , ▁som etime ▁between ▁ 8 7 0 ▁and ▁ 8 8 0 . ▁Ber eng ar ▁became ▁King ▁of ▁Italy ▁in ▁ 8 8 8 , ▁with ▁Bert ila ▁as ▁his ▁queen . ▁However , ▁her ▁husband ▁lost ▁his ▁throne ▁in ▁the ▁following ▁year ▁to ▁Guy ▁of ▁S pole to . ▁Ber eng ar ▁began ▁to ▁re assert ▁his ▁power ▁in ▁ 8 9 6 , ▁after ▁the ▁fall ▁of ▁the ▁S pole to ▁family , ▁and ▁the ▁withdraw al ▁of ▁Emperor ▁Arn ulf ▁from ▁the ▁pen ins ula ; ▁however , ▁a ▁defeat ▁by ▁a ▁Magyar ▁army , ▁and ▁the ▁decision ▁by ▁the ▁Italian ▁nobles ▁to ▁appoint ▁Louis ▁of ▁Prov ence ▁as ▁King ▁of ▁Italy , ▁delayed ▁the ▁King ▁and ▁Queen ' s ▁formal ▁return ▁to ▁power ▁until ▁ 9 0 5 . ▁Through out ▁this ▁period ▁Bert ila ▁frequently ▁interven ed ▁in ▁Ber eng ar ' s ▁diplom as , ▁particularly ▁in ▁favour ▁of ▁churches ▁and ▁monaster ies . ▁In ▁these ▁documents , ▁Bert ila ▁is ▁entitled ▁cons ors ▁reg ni ▁(' part ner ▁in ▁rule '), ▁a ▁title ▁specifically ▁den oting ▁her ▁power ▁and ▁influence , ▁as ▁opposed ▁to ▁that ▁of ▁a ▁mere ▁' w ife ' ▁( con i un x ). ▁ ▁In ▁ 9 1 5