en_tn/gen/36/09.md

These were the descendants of Esau

This sentence introduces the account of Esau's descendants in Genesis 36:9-43. AT: "This is an account of the descendants of Esau" (See: rc://en/ta/man/translate/figs-explicit)

in the hill country of Seir

This means that they lived in the hill country of Seir. The full meaning of this may be made explicit. AT: "who lived in the hill country of Seir" (See: rc://en/ta/man/translate/figs-explicit)