What does Genesis 36:43 say in the KJV?

Duke Magdiel, duke Iram: these be the dukes of Edom, according to their habitations in the land of their possession: he is Esau the father of the Edomites.

A concluding genealogical summary listing the chiefs of Esau's descendants in their settled territories.

King James Version (public domain)

Traditionally attributed to Moses · c. 13th century BC · The Pentateuch — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — is traditionally attributed to him

Context

41Duke Aholibamah, duke Elah, duke Pinon,

42Duke Kenaz, duke Teman, duke Mibzar,

43Duke Magdiel, duke Iram: these be the dukes of Edom, according to their habitations in the land of their possession: he is Esau the father of the Edomites.