The new ruler pursued a pacifying policy, and sought accommodation with both the Albanian clans and the Byzantine Empire.
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This alliance brought a respite to the fighting in Epirus, but the conflict flamed up again after the Battle of Kosovo and death of Murad in 1389.
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In 1399 Esau, supported by some Albanian clans, marched against his wife's brother-in-law Gjon Zenebishi of Gjirokastër.
Thus he became the son-in-law of Shpata and the brother-in-law of the wife of Esau de' Buondelmonti, Despot of Epirus.