Title: Ismene
Content:  Ismene (, Ismēnē) is the name of the daughter and half-sister of Oedipus, daughter and granddaughter of Jocasta, and sister of Antigone, Eteocles, and Polynices. She appears in several plays of Sophocles: at the end of Oedipus Rex, in Oedipus at Colonus and in Antigone. She also appears at the end of Aeschylus' Seven Against Thebes.
Title: Ismene
Content:  Ismene is not named, but is seen at the end of Oedipus Rex as her father/brother laments the "shame" and "sorrow" he is leaving her and her sister too. Oedipus begs Creon to watch over them, but in his grief reaches to take them with him as he is led away. Creon prevents him from taking his daughters out of the city with him.
Title: Ismenus
Content: Ismenus or Ismenius, son of Oceanus and Tethys, god of the river of the same name. He was mentioned as the father of several spring nymphs, including Dirce and Strophia, also Crocale and the musician Linus. In Statius' Thebaid, the river god Ismenus gets involved in the war of the Seven against Thebes: he attempts to raise his waters against Hippomedon in revenge for the death of Crenaeus, son of his daughter Ismenis by Pan, but has to withdraw his attack at the request of Zeus. ; Ismenus, son of Asopus and Metope, eponym of River Ismenus in Boeotia, on the banks of which he settled. ; Ismenus, one of the Niobids. ; Ismenus, also spelled Ismenius, son of Apollo and the Oceanid Melia, brother of the seer Tenerus, and an alternate eponym of River Ismenus, which is said to have previously been known as Ladon. In Greek mythology, the name Ismenus (Ancient Greek: Ἰσμηνός) or Ismenius may refer to: 
Title: Ismene (Asopid)
Content:  In Greek mythology, Ismene (, Ismēnē) was a daughter of the river-god Asopus by Metope. The blue berries near Thebes were named for her, or for her brother. She was the wife of Argus, eponymous king of Argus and thus, mother of Argus Panoptes and Iasus.
Title: Ismenis
Content:  In Greek mythology, Ismenis was a Naiad nymph, one of the daughters of the Boeotian river god Ismenus: Ismenis is a patronymic rather than a given name. In Statius' Thebaid, Ismenis was the mother, by Pan, of Crenaeus, a defender of Thebes in the war of the Seven against Thebes. When Crenaeus was killed by Hippomedon whom he had challenged to single combat, Ismenis searched for his body which was carried away by the flow of River Ismenus, and, upon finding it, lamented her son's fate.
Title: Ismene
Content:  Ismene appears in Oedipus at Colonus to tell her father of the situation in Thebes and the rivalry of his sons. She explains that Eteocles has taken the throne from Polynices and driven him out of the city. As a result of this, Polynices gathered his own army to either take back the city "or to die there with honor." According to the Oracle of Delphi, the location where Oedipus is buried will determine the result of the war between the brothers. Ismene tells her father that Creon plans to have him buried on the border of Thebes so that they will have the desirable outcome. Hearing this, Oedipus curses his sons and refuses to leave Colonus. The chorus (in this play the elders of Colonus) tell him that because he has walked on the sacred ground of 
Title: Ismene
Content:   The 7th-century BC poet Mimnermus accounts that Ismene was murdered by Tydeus, one of the Seven. In this account, Ismene and her lover Theoclymenus met outside of the city during the siege. Tydeus had been told their whereabouts by Athena, and apprehended Ismene while Theoclymenus escaped. While she begged for sympathy, Tydeus was unaffected by her pleas and killed her. This is mentioned in no other extant Classical writing, but the scene is represented on a 6th-century Corinthian black-figure amphora now housed in the Louvre.
Title: Ismene
Content:  Eumenides, he has to "perform rites of purification." Due to his blindness and age, Oedipus is unable to fulfill this task and asks one of his daughters to instead. Ismene agrees and exits to do so. Later in the play, in an attempt to force Oedipus to return to Thebes, Creon tells him that he has seized Ismene and takes Antigone away as well. However, Theseus and the Athenians overpower them and exit to free the girls. Ismene appears again at the end of the play with her sister as they mourn the death of their father and lament that they cannot join him. Theseus tells them that Oedipus has been buried but the location is secret and he has forbidden that they be told of it. Antigone resolves to return to Thebes, and Ismene goes with her.
Title: Ismene
Content:  Aeschylus' play, Seven Against Thebes, depicts the war and demise of Eteocles and Polynices. At the end of the play the Chorus narrates Ismene and Antigone entering to sing a funeral dirge together for both of their brothers. While Antigone exits with the First Semichorus, escorting the body of Polynices, Ismene and the Second Semichorus exit with the body of Eteocles.
Title: Orchomenus (mythology)
Content:  king, the father of Elara. ; Orchomenus, son of Zeus and the Danaid Isonoe (Isione ). He was the husband of Hermippe and legal father of Minyas whose biological father was Poseidon. In some accounts, Orchomenus was regarded as the son of Zeus and Hermippe instead. ; Orchomenus, a son of Minyas and Phanosyra, thus grandson of the above (note though that there were multiple versions of Minyas' parentage). He succeeded to Minyas' power and had his domain, the Boeotian Orchomenus, named after himself. He received Hyettus who had fled Argos over the murder of Molurus, and assigned to him a tract of land. According to one source, Orchomenus died without issue, and his kingdom 

Question: Who is the father of Ismene?
Answer: Oedipus.