I know of many Gianfrancesco in Fontegreca, I have cousins there but I have yet to find the connection in other families. I know many in Rhode Island from there too. My great grandfather Antonio born 1820 originally from Roccamandolfi, relocated to Gallo Matese in 1847. 9 children born there I found every descendant. I have been there 3 times. My cousin Rocco G lives in Fontegreca.
You can email me I will share all I know