Macareus or Macar was, in Greek mythology, the son of Aeolus

Aeolus

Aeolus was the ruler of the winds in Greek mythology. In fact this name was shared by three mythic characters. These three personages are often difficult to tell apart, and even the ancient mythographers appear to have been perplexed about which Aeolus was which...

 and either Enarete

Enarete

In Greek mythology, Enarete , daughter of Deimachus, was the wife of Aeolus and ancestress of the Aeolians. Her children were Canace, Sisyphus, Deioneus, Salmoneus, Macar, Cretheus, Athamas, Perieres, Calyce, Peisidice, Perimede and in some myths, Alcyone. She may have been the mother of Arne, if...

 or Amphithea

Amphithea

Amphithea is the name of four women in Greek mythology:1. Amphithea, wife of Lycurgus, king of Nemea, and mother of Opheltes . Also known as Eurydice....

.

He and his sister Canace

Canace

In Greek mythology, Canace was a daughter of Aeolus and Enarete, and lover of Poseidon.Canace had seven brothers and six sisters. Her brothers were Athamas, Cretheus, Deioneus, Macar , Perieres, Salmoneus and Sisyphus. Her sisters were Alcyone, Arne, Calyce, Peisidice, Perimele and Tanagra...

 fell in love with each other and had a child together. Both Canace and the baby were killed by Aeolus after he had discovered this, and Macareus took his own life.

Macareus, son of Aeolus, is also given as the father of Amphissa

Amphissa (mythology)

Amphissa was in Greek mythology, an incest daughter of Aeolus's son, Macareus, with his sister, Canace. Both he and his sister killed themselves.Amphissa was beloved by Apollo....

 or Issa, who was seduced by Apollo

Apollo

Apollo is one of the most important and complex of the Olympian deities in Greek and Roman mythology...

in disguise of a shepherd.