Hello Grace,
It's good to hear from you again and I am certain my uncle would be very pleased with as much information from NZ as you could provide. I wouls be fascinated by how much unclue Peter might learn from the Blomfield Blondeville web site, too.
As for the French Connection, they got back as far as Richard De Blonvill who was the aforementioned sub tenant to Hubert De Monte Caniso, in Blonville, Normandy, around 1086. My memory - which could well be wrong here - tells me that when they requested assistance from authorities in France to identify the upline from thee, they were stopped. Again, my memory tells me the French didn't seem very keen to help some Rosbifs trace their lineage back over there... but I could be wrong. A month in Normandy might help, but I donlt think they got that far, literally.
Best, Trevor