Were poltemy x11 and Cleopatra x related?

probably not.....

who knows????? Good question, because there was no Cleopatra X. The only other Cleopatra after Cleopatra VII was her daughter Cleopatra Selene. Ptolemy XII was the father of Cleopatra VII. It can be confusing, because there were many Cleopatras and many Ptolemys. The only way to sort them out is to make sure of the numbers after their names.