Niobids

In Greek mythology, the Niobids were the children of Amphion of Thebes and Niobe, slain by Apollo and Artemis because Niobe, born of the royal house of Phrygia, had boastfully compared the greater number of her own offspring with those of Leto, Apollo's and Artemis' mother: a classic example of hubris.

Manto, the seeress daughter of Tiresias, overheard Niobe's remark and bid the Theban women placate Leto, in vain.

According to some sources, however, two of the Niobids who had supplicated Leto were spared: Apollodorus gives their names as Meliboea (Chloris)[8] and Amyclas.

[10] In another version of the myth, the Niobids are the children of Philottus[11] and Niobe, daughter of Assaon.

One of the two ivory reliefs added to the doors of the Temple of Apollo Palatinus in its Augustan rebuild depicted their death.