Aclima

In an effort to explain where Cain and Abel acquired wives, some traditional sources stated that each child of Adam and Eve was born with a twin who became their mate.

Some sources in the Eastern Orthodox traditions give Cain's twin sister the name Calmana, Calmanna, Azrun, or Azura.

[6][7] Cain's sister is named Kalmana in the Apocalypse of Pseudo-Methodius (first Greek redaction) II.1.,[8] and Calmana in the Golden Legend.

The poet Petrus Riga (1140–1209) included Calmana in his famous poem Aurora, and this could have been a source for her appearance in Peter Comestor's Historia Scholastica.

[9] In the 6th-century apocryphal work Conflict of Adam and Eve with Satan, Cain's wife and twin is named Luluwa.