[14] Aegeus was born in Megara where his father Pandion had settled after being expelled from Athens by the sons of Metion who seized the throne.

[15] After the death of Pandion, now king of Megara, Aegeus in conjunction with his three brothers successfully attacked Athens, took control over the government and expelled the usurpers, the Metionids.

[18] The division of the land was explained further in the following text by the geographer Strabo:[19] ... when Attica was divided into four parts, Nisus obtained Megaris as his portion and founded Nisaea.

Now, according to Philochorus, his rule extended from the Isthmus to the Pythium, but according to Andron, only as far as Eleusis and the Thriasian Plain.

Although different writers have stated the division into four parts in different ways, it suffices to take the following from Sophocles: Aegeus says that his father ordered him to depart to the shorelands, assigning to him as the eldest the best portion of this land; then to Lycus he assigns Euboea's garden that lies side by side therewith; and for Nisus he selects the neighboring land of Sceiron's shore; and the southerly part of the land fell to this rugged Pallas, breeder of giants.Later on, Lycus was driven from the territory by Aegeus himself, and had to seek refuge in Arene, Messenia which was ruled by King Aphareus.

[20] Still without a male heir with his previous marriages, Aegeus asked the oracle at Delphi for advice.

[21] The cryptic words of the oracle were "Do not loosen the bulging mouth of the wineskin until you have reached the height of Athens, lest you die of grief.

[24] Upon his return to Athens, Aegeus married Medea, who had fled from Corinth and the wrath of Jason.

When Theseus grew up, he found his father's belongings left for him and went to Athens to claim his birthright.

[25]While visiting in Athens, King Minos' son, Androgeus managed to defeat Aegeus in every contest during the Panathenaic Games.

Upon his departure, Aegeus told him to put up white sails when returning if he was successful in killing the Minotaur.

At Athens, the traveller Pausanias was informed in the second-century CE that the cult of Aphrodite Urania above the Kerameikos was so ancient that it had been established by Aegeus, whose sisters were barren, and he still childless himself.