Ptolemy I Soter (/ˈtɒləmi/; Greek: Πτολεμαῖος Σωτήρ, Ptolemaîos Sōtḗr "Ptolemy the Savior"; c. 367 BC – January 282 BC) was a Macedonian Greek general...

Claudius Ptolemy (/ˈtɒləmi/; Greek: Πτολεμαῖος, Ptolemaios; Latin: Claudius Ptolemaeus; c. 100 – c. 170 AD) was an Alexandrian mathematician, astronomer...

Ptolemaeus German: Ptolemäus, Ptolemaios Italian: Tolomeo English: Ptolemy Ancient Egyptian: ptwꜣrwmys Coptic: ⲡⲧⲟⲗⲉⲙⲁⲓⲟⲥ Ptolemaios Phoenician: 𐤐𐤕𐤋𐤌𐤉𐤎...

lengths of its diagonals, then the quadrilateral can be inscribed in a circle i.e. it is a cyclic quadrilateral. Ptolemy's Theorem yields as a corollary a...

Ptolemy III Euergetes (Greek: Πτολεμαῖος Εὐεργέτης, romanized: Ptolemaîos Euergétēs, "Ptolemy the Benefactor"; c. 280 – November/December 222 BC) was the...

Ptolemy XIV Philopator (Greek: Πτολεμαῖος Φιλοπάτωρ, Ptolemaios; c. 59 – 44 BC) was a Pharaoh of the Ptolemaic Kingdom of Egypt, who reigned from 47 until...

The Last Days of Ptolemy Grey, a 2010 novel by Walter Mosley Ptolemaios and Ptolemaios 2, spacecraft in anime Mobile Suit Gundam 00 and film Mobile Suit...

Ptolemy Philadelphus (Greek: Πτολεμαῖος ὁ Φιλάδελφος, Ptolemaios Philadelphos, "Ptolemy the brother-loving", August/September 36 BC – 29 BC) was a Ptolemaic...

Ptolemy V Epiphanes Eucharistus (Greek: Πτολεμαῖος Ἐπιφανής Εὐχάριστος, Ptolemaĩos Epiphanḗs Eukháristos "Ptolemy the Manifest, the Beneficent"; 9 October...

Ἀλέξανδρος, Ptolemaĩos Aléxandros) was a member of the Ptolemaic dynasty who ruled Egypt for a few days in 80 BC. He was a son of Ptolemy X Alexander I and Cleopatra...