Genesis 36:37 Midrash

וַיָּ֖מָת שַׂמְלָ֑ה וַיִּמְלֹ֣ךְ תַּחְתָּ֔יו שָׁא֖וּל מֵרְחֹב֥וֹת הַנָּהָֽר׃

And Samlah died, and Shaul of Rehoboth by the River reigned in his stead.

Read midrashic interpretation of Genesis 36:37: and classical rabbinic exegesis.