8th cousins 11th great grandfather

[Cathal o hagan]

What is my 8th cousins 11th great granduncle on her father's side  to me if they are descended from my ancestor and my 8th cousin married her 5th cousin on her mothers side who was also my 5th cousin and are also descended from my ancestor. and her great grandmother was my 3rd cousin . And her great great grandmother married my 10th cousin who is also her 10th cousin on her mothers side?

[Girl Guide]

Hello Cathal, welcome to Rootschat 

Try the chart on this website

https://www.familysearch.org/blog/en/cousin-chart/

Scroll down the page until you get to the green bar with cousin calculator in white.  This goes up to 10th great grandparent so you may have to work out the 11th for yourself.