▁to ▁accept ▁a ▁tr uce ▁thus ▁de ▁fact o ▁recogn izing ▁the ▁rest oration ▁of ▁the ▁Bulgar ian ▁Empire . ▁ ▁After math ▁ ▁According ▁to ▁the ▁treat y , ▁the ▁young est ▁of ▁the ▁As en ▁brothers , ▁K alo yan , ▁was ▁sent ▁as ▁a ▁host age ▁to ▁Constantin ople ▁to ▁guarantee ▁the ▁peace . ▁However , ▁Nik et as ▁Ch oni ates ▁noted ▁that ▁the ▁situation ▁became ▁even ▁more ▁gr im ▁for ▁the ▁By z ant ines ▁because ▁soon ▁after ▁the ▁Bulg ari ans ▁in ▁Mac ed onia ▁re bel led ▁under ▁Dob rom ir ▁Ch rys os . ▁▁ ▁The ▁peace ▁last ed ▁until ▁ 1 1 8 9 ▁when , ▁due ▁to ▁the ▁Bulgar ian ▁proposal ▁to ▁support ▁the ▁Third ▁Cr us ade ▁against ▁the ▁By z ant ines , ▁Isaac ▁Angel os ▁launched ▁another ▁campaign ▁and ▁suffered ▁a ▁heavy ▁defeat ▁in ▁the ▁Battle ▁of ▁Try av na . ▁ ▁S ources ▁ ▁Й ор дан ▁Анд ре ев , ▁Ми л чо ▁Ла л ков , ▁Б ългар ски те ▁х ан ове ▁и ▁ ца ре , ▁Вели ко ▁Т ър ново , ▁ 1 9 9 6 . ▁ ▁Category : S ie ges ▁involving ▁the ▁Second ▁Bulgar ian ▁Empire ▁Category : S ie ges ▁involving ▁the ▁By z antine ▁Empire ▁Category : B att les ▁of ▁the ▁By z antine – B ul gar ian ▁Wars ▁Category : Mil it ary ▁history ▁of ▁Bulg aria ▁Category : L ove ch ▁Category : 1 2