Aaron (Hebrew: אַהֲרֹן‎ ; or ) is a prophet, high priest, and the brother of Moses in the Abrahamic religions (elder brother in the case of Judaism).
Aaron ben Joseph ha-Levi was a Spanish Talmudist and critic; a direct descendant of Zerahiah Ha-Levi, and probably, like him, a native of Girona, Spain; flourished at the end of the thirteenth century; died before 1303.
 About the middle of the thirteenth century he studied under Naḥmanides, at Girona, where he also met, as a fellow pupil, Solomon ben Adret, who later came to be his opponent.
 Aaron especially mentions among his teachers his brother Phinehas (who migrated later to Canet near Perpignan, after which place he is surnamed), and his nephew Isaac, the son of his brother Benveniste.
 His life appears to have been spent in Spain.
 In 1285 he was rabbi in Saragossa, where he was so highly respected that Nissim ben Reuben, in 1350, did not dare to annul a decision given by Aaron to a community in that city, even though he considered it illegal (Isaac ben Sheshet, responsa, No. 390).
 About 1291 Aaron lived for a short time in Toledo.
 The assertion of some modern historians that, when advanced in age, he emigrated to Provence, is based on a misunderstanding of Meiri (see below), where the correct reading is instead of, and instead of (see Neubauer's edition, p. 230).
According to the Hebrew Bible, Phinehas or Phineas ( ; ) was a priest during the Israelites' Exodus journey, the grandson of Aaron and son of Eleazar, the High Priests ( ).
 He distinguished himself as a youth at Shittim with his zeal against the Heresy of Peor.
 He was displeased with the immorality with which the Moabites and Midianites had successfully tempted the Israelites ( ) to inter-marry and to worship Baal-peor, so he personally executed an Israelite man and a Midianite woman while they were together in the man's tent, running a javelin or spear through the man and the belly of the woman, bringing to an end the plague sent by God to punish the Israelites for sexually intermingling with the Midianites.
Zimri (Arabic: السامري‎ ‎ ) son of Salu was the Prince or leader of a family within the Tribe of Simeon during the time of the Israelites' Exodus in the wilderness at the time when they were approaching the Promised Land.
 At Abila or Shittim he took part in the Heresy of Peor, taking as a paramour a Midianite woman, Cozbi.
 Zimri openly defied Moses before the people who were standing at the entrance of the Tabernacle by going in to the Midianite.
 Phinehas, grandson of Aaron, killed them both by impaling them on a spear (Numbers 25:6-15).
Mûsâ ibn 'Imran (Arabic: ٰمُوسَى‎ , "Mūsā " ‎ ) known as Moses in the Hebrew Bible, considered a prophet, messenger, and leader in Islam, is the most frequently mentioned individual in the Quran.
 In Islamic tradition, instead of introducing a new religion, Musa is regarded by Muslims as teaching and practicing the religion of his predecessors and confirming the scriptures and prophets before him.
 The Quran states that Moses was sent by God to the Pharaoh of Egypt and the Israelites for guidance and warning.
 Moses is mentioned more in the Quran than any other individual, and his life is narrated and recounted more than that of any other prophet.
 According to Islam, all Muslims must have faith in every prophet ("nabi") and messenger ("rasul") which includes Moses and his brother Aaron ("Harun").
 The Quran states:
Abu Abdallah Mohammed al-Hajj ibn Mohammed ibn Mohammed ibn Abd-al-Rahman ibn Abu Bakr al-Dilai (born in Fez, died 1678), also known as Al-Murabit, was a renowned linguist and scholar of Arabic grammar and "usul-al-fiqh" (law).
 He was the grandson of the founder of the zaouia of Dila, Abu Bakr ibn Mohammed al-Majati as-Sanhaji (1526-1612) and brother of Mohammed al-Hajj (died 1671), who proclaimed himself sultan of Fez in 1641.
 Al-Dila'i wrote (a.o.) treatises on law ("Al Kitab Zawahir al-Fikri"), poems in praise of the prophet Mohammed ("Zahr al-hada'ih" and "Al-Zahr al-nadi fi-l-khuluk al-muhammadi").
 and an "urdjuza" (poem in a specific metre) about the "shorfa" (descendants of the prophet), "Durrat al-tidjan".
 Al-Dila'i performed the hajj, together with his father, in 1659 and wrote his "Rihla" (account of the journey) in the form of a poem of 136 lines, entitled "Al-Rihla al-Mujaddasa".
 He was the teacher of Abu Ali al-Hassan al-Yusi (1631–1691).
Phinehas was son of Eleazar and grandson of Aaron the High Priest.
Ichabod (Hebrew: אִיכָבוֹד‎ ‎ , "ikhavod" – "no glory", "inglorious" or "where is the glory?")
 is mentioned in the first Book of Samuel as the son of Phinehas, a malicious priest at the biblical shrine of Shiloh, who was born on the day that the Israelites' Ark of God was taken into Philistine captivity.
 His mother went into labour due to the shock of hearing that her husband and Eli, her father-in-law, had died and that the Ark had been captured.
 He is also named later as the brother of Ahitub.
Phineas Howe Young (also found as Phinehas) (February 16, 1799 – October 10, 1879) was a prominent early convert in the Latter Day Saint movement and was later a Mormon pioneer and a missionary for The Church of Jesus Christ of Latter-day Saints (LDS Church).
 Phineas Young was an older brother of Brigham Young, who was the president of the LDS Church and the first governor of the Territory of Utah.
Yakub or Yaqub (Arabic: يعقوب‎ ‎ , also transliterated in other ways including "Yaqoob", "Yaqoub", "Yaqub" and "Yakup") is the Arabic and muslim version of Jacob and James , because in fact they are the same name.
 He's a Prophet of Islam (see Jacob in Islam) and hence commonly used as a male given name in Arab, Turkish and Muslim societies.
 It is also used as a surname.
 Prophet Yakub was grandson of prophet Ibrahim and son of prophet Ishaq.

Question: Phinehas is the grandson of a prophet who was the brother of who ?
Answer: Moses