I am researching the family of Helene Cotterel/Cotterelle/or various possible spellings, born Rennes, approx. 1766-8. Her parents were Pierre Cotterel and Dame Jacques le Taneur. I wonder if anyone knows of any siblings Helene might have had, and if so, how any of their descendants might be contacted. Anyone with any information would be a great help. I am in Brisbane, Australia.