The original quote is (as usual) by William Shakespeare, from Twelfth Night (act 2, scene 5), where Malvolio reads in a letter (which he thinks was written to him by his mistress):
“In my stars I am above thee; but be not afraid of greatness: some
are born great, some achieve greatness, and some have greatness
thrust upon ’em.”
The dictator most associated with the phrase ‘Arch-Generalissimo-Father-of-His-Countryship’ is probably Franco.