I am doing research on my Isaia line. I have full documentation back to 1580 in Tropea, Calabria. I am trying to connect the family to the Isaia family from S. Lucia di Mela (right across the Strait in Sicily)who left sometime in the mid 1500s. The focus of my research is the Jewish origin of the family. In my line, the surname has been written Saia, Saija, Saya, and Isaia. There are a few original documents which list the family as jewish, as well as some studies. I would like to hear from anyone doing similar research, or specifically on the family in calabria. Thanks you