Esau was jealous of his brother Jacobs inheritance and blessing; sisters Leah and Rachel compete for the love of Jacob; Josephs brothers are so jealous that they effectively sell him into slavery. These stories are also present in the Quran. Another example is provided in the myth of Romulus and Remus, wherein twin brothers Romulus and Remus fight for control over Rome, and which ends with the death of Remus at the hands of his brother. In folk and fairy tales
Sibling rivalry, bitter jealousy, and envy are notable in several fairy tales around the world. In some tales, the jealousy escalates to outright murder of the successful sibling. Some tale types, according to the Aarne-Thompson-Uther Index, heavily feature sibling and step-sibling rivalry as part of the plot:

ATU 301, "The Three Stolen Princesses" or "Jean de lOurs": a hero, born with strong powers, descends to an underworld realm to rescue three princesses. He sends the three maidens to the upper realm with the help of his brothers (or companions), but they cut the rope and trap him in the subterranean realm. ATU 361, "Bearskin": a man makes a deal with devil: must not pray or bathe for a certain number of years. Later, the man meets a father with his three daughters; only the youngest sister promises to marry the man. After the time is up, the man grooms himself and goes to meet his bride, explaining the whole story. Her sisters seethe with rage and explode with jealousy; the devil takes two souls, instead of one.
When the three brothers are assigned tasks by a king, the youngest accomplishes the feats with the animals help. ATU 707, "The Dancing Water, the Singing Apple, and the Speaking Bird": one night, the prince (king, tsar, sultan) hears three sisters talking, the youngest promising that, if she were to marry the king, would bear him children (twins, triplets) with wonderful attributes. Her sisters are married to lowly officials or servants of the kings court and, bearing an intense jealousy toward the newly crowned queen, decide to get rid of the royal children. ATU 709, "Snow White": in some regional variants of the tale type, the rivalry isnt between mother and daughter or between step-mother and step-daughter. Instead, it is the heroines older sisters who get jealous over the youngests beauty and charm and conspire to kill her. ATU 780, "The Singing Bone": a person murders their sibling (brother or sister) and buries them in a shallow grave. A tree sprouts from it. Its wood is used to create an instrument (fiddle, violin, flute) that reveals the murder. In literature
A number of Shakespeares plays display the incidences of sibling rivalry. King Lear provokes rivalry among his three daughters by asking them to describe their love for him; in the same play, Edmund contrives to force his half-brother Edgar into exile. In The Taming of the Shrew, sisters Kate and Bianca are shown fighting bitterly. In Richard III, the title character is at least partially motivated by rivalry with his brother, King Edward.