Question from Roslyn - Descendants of the Poles

My grandmother was born Alice Mary Pole in 1876(?). We were always told we were descendants from the de la Poles! My grandmother was born in Bristol,from a banking family, and one of 9 children. Her father went bust and she came to Southern Africa to nurse, met my grandfather, John James Seton-Rogers, and had 4 children. Any links to either of the Pole families that you have found?
May be too modern! But worth a try- I have spent ages without much luck!
Thanks,
Ros