There is, actually. Plutarch's Life of Antomy:
"Many kings and great commanders made petition to Caesar (note: Octavian) for the body of Antony, to give him his funeral rites; but he would not take away his corpse from Cleopatra, by whose hands he was buried with royal splendor and magnificence, it being granted to her to employ what she pleased on his funeral."
Later:
"When she understood this (note: that she was about to be sent to Rome), she made her request to Caesar that he would be pleased to permit her to make oblations to the departed Antony; which being granted, she ordered herself to be carried to the place where he was buried, and there, accompanied by her women, she embraced his tomb with tears in her eyes, and spoke in this manner: "O, dearest Antony," said she, "it is not long since that with these hands I buried you; then they were free, now I am a captive, and pay these last duties to you with a guard upon me, for fear that my just griefs and sorrows should impair my servile body, and make it less fit to appear in their triumph over you. No further offerings or libations expect from me;"
And after her suicide:
"But Caesar, though much disappointed by her death, yet could not but admire the greatness of her spirit, and gave order that her body should he buried by Antony with royal splendor and magnificence."