 Ramba uchinyora ndima iyi - Muna 1400, Constantine akatumwa senhume kumukuru wehondo weMongolia Timur Leng uyo akapfuuridzira hondo isingachinjikurwisa vaGeorgia. Pashure pacho, akakumbira pasina mubayiro kubva kumunununa wake George VII kuti aite rugare naTimur. Muna 1402, Constantine pamwe chete nomuchinda Ioane Jakeli weSamtskhe vakazviisa kuna Timur asi havana kutongotora rutivi muhondo yokurwisana neGeorgia. Akatora nzvimbo yaGeorge VII samambo muna 1407 ndokutanga chirongwa chokudzorera zvakanga zvaparadzwa munguva yehondo dzaTimur. Munenge muna 1411, akabatana naShirvanshah Ibrahim I uye mutongi weShaki Sidi Ahmed kuti arwise Kara Koyunlu Turkmen kufambira mberi muCaucasus. Muhondo inokosha yeChalagan, vavakidzani vakakundwa uye Constantine, munununa wake David naShervanshah Ibrahim vakatapwa. Ari musungwa, akazvibata nenzira yokuzvitutumadza uye muchinda weTurkoman akatsamwa Kara Yusuf akarayira kuti iye, Dhavhidhi, uye vakuru vakuru 300 veGeorgia vaurayiwe. Kara Yusuf akauraya Constantine noruoko rwake amene. 