Jahan Shah
Alexander I of Georgia who sought to strengthen and restore his declining Kingdom, faced constant invasions by the tribal Turkomans. Alexander re-conquered Lori from the Turkomans in 1431, which was of great importance in securing of the Georgian borders. Around 1434/5, Alexander encouraged the Armenian prince Beshken II Orbelian to attack the Kara Koyunlu clansmen in Siunia and, for his victory, granted him Lori under terms of vassalage. In 1440, Alexander refused to pay tribute to Jahan Shah of the Kara Koyunlu. In March, Jahan Shah surged into Georgia with 20,000 troops, destroyed the city of Samshvilde and sacked the capital city Tbilisi. He massacred thousands of Christians, put heavy indemnity on Georgia, and returned to Tabriz. He also mounted a second military expedition against Georgia in 1444. His forces met those of Alexander's successor, King Vakhtang IV at Akhaltsikhe, but the fighting was inconclusive and Jahan Shah returned to Tabriz once more.