Not in the Corinthia but close.

An archaeological team associated with the University of Udine has announced their discovery of a Mycenaean necropolis near Aigio, a town on the coast of the Corinthian Gulf about 50 miles west of Ancient Corinth.

You can read about the discovery here: Archeologia, l’Università di Udine scopre una necropoli micenea di 3.500 anni fa

Thanks to Tom Henderson for sending the link.