In 1259 Constantine visited the Mongol warlord Hulegu who had conquered Mesopotamia and blessed him.
The chronicler Vardan Areweltsi wrote that Constantine suffered greatly due to seeing his country ravaged and it caused his health to decline.
Chronicler Vardan wrote a beautiful dedication in memory of the Catholicos, who died the following year, saying "He was the sharer of grief and the fellow-mourner to many in our sinful and anger-filled age.
In this time of pain and sobbing he bore it all himself and made things more mild as he was able, generously and unsparingly giving encouragement, advice, and treasure.
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