What is Cleopatra's lastname?

Answer 1

Cleopatra did not have a last name as we know it. Because she belonged to the Ptolemaic dynasty, you could loosely say Ptolemy was her last name, but this would not be quite accurate as it was also the first names of just about all of her predecessors. Cleopatra's throne name was Cleopatra Thea Philopator, which means Cleopatra, the father-loving goddess. This Thea Philopator could also loosely be considered a "last name" but not accurate either, because it was a title, not a genuine name.