Eshcol

A man, in the time of the Patriarchs · named in 2 verses

Eshcol was an Amorite, an ally of Abram, and the valley of Eshcol was named after him.

From Easton's Bible Dictionary

Bunch; brave. (1.) A young Amoritish chief who joined Abraham in the recovery of Lot from the hands of Chedorlaomer (Gen. 14:13, 24).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

Siblings Aner, Mamre

From STEPBible's TIPNR genealogy data. A relationship the data marks uncertain is not shown here.

First named at Genesis 14:13.

Genesis 14:13 Then an escapee came and reported this to Abram the Hebrew. Now Abram was living near the Oaks of Mamre the Amorite, a brother of Eshcol and Aner, all of whom were bound by treaty to Abram.
Genesis 14:24 I will accept nothing but what my men have eaten and the share for the men who went with me—Aner, Eshcol, and Mamre. They may take their portion.”