Cleopatra VI of Egypt

Cleopatra VI Tryphaena (Greek: Κλεοπάτρα Τρύφαινα) was an Egyptian Ptolemaic queen. She may be identical with Cleopatra V.
There were at least two, perhaps three Ptolemaic women called Cleopatra Tryphaena:

Tryphaena was a sister of Ptolemy IX Lathyros, Ptolemy X Alexander I, Cleopatra IV and Cleopatra Selene I. If this Tryphaena also bore the name Cleopatra, has not been attested. This Tryphaena may have been born in early 140 or 141 BC. She married Antiochus VIII Grypus, king of Syria, in 124 BC, and bore him five sons: Seleucus VI Epiphanes, the twin Antiochus XI Epiphanes and Philip I Philadelphus, Demetrius III Eucaerus, and Antiochus XII Dionysus. The couple also had a daughter called Laodice. Tryphaena was killed in Antioch (Greek: Αντιόχεια), capital of Syria, by Antiochus IX Cyzicenus, as a revenge for his own wife's (Cleopatra IV) death by the orders of her sister Tryphaena (in 111 BC).

Cleopatra V Tryphaena was a Queen of Egypt until her mysterious disappearance from the records in 69 BC. If, as some scholars believe, her disappearance is attributable to her death, then it must be assumed that she had a daughter also called Cleopatra Tryphaena.

She is called Cleopatra VI Tryphaena by some modern historians and she would have been an older sister of the famous Cleopatra VII. If so, her birth year would correctly be c. 75 BC. Some sources say she died as a child. Others say that when Ptolemy XII fled to Rome to avoid an uprising in Alexandria against him (in 58 BC), she and her sister Berenice IV took control of Ptolemaic Egypt. Strabo, however, states that Ptolemy had three daughters, of whom only the eldest (Berenice) was legitimate. This suggests that the Cleopatra Tryphaena referred to by Porphyry may have been Ptolemy's wife, not his daughter. Many experts now identify Cleopatra VI with Cleopatra V of Egypt, Ptolemy's wife.