Negative-first-
cousin-eleven-times-removed:
great-
great-great-great-great-great-great-great-great-grandparent or great-great-great-great-great-great-great-great-great-grandchild.
My
great-
great-
great-great-great-great-great-great-great-grandparent is my N1C11R in theory and my great-great-great-great-great-great-great-great-great-grandchild is also my N1C11R in theory.