Sándor Kendi married twice: his wives were Klára Patóchi and Anna Almádi.

Sándor Kendi was appointed Governor along with his son-in-law, Farkas Kovacsóczy and László Sombori, who also member of the Royal Council.

After the resignation of Governor János Ghyczy (1588) he was elected councilor besides the older Sigismund Báthory however the new prince did not accept that and overshadowed him.

Kendi considered dangerous for the independence of Transylvania that Sigismund allied with the Habsburg-dominated Kingdom of Hungary.

He clarified his standpoint at the Transylvanian Diet on 17 August 1594, but the majority opted for turning against the Ottoman Empire.