Lecah
Lecah appears once in the Judahite genealogies of Chronicles. The name stands either for a person or for a settlement attached to one — the wording allows both readings — and is set within the Shelah branch of Judah's line.
In the Shelah genealogy
1 Chronicles 4:21: "The sons of Shelah the son of Judah: Er the father of Lecah, and Laadah the father of Mareshah, and the families of the house of those who wrought fine linen, of the house of Ashbea;"
The construction "Er the father of Lecah" parallels "Laadah the father of Mareshah" in the same verse. Mareshah is elsewhere a known Judahite town, and the parallel suggests Lecah likewise denotes a place whose population traced descent from Er. The verse situates both names in Judah's tribal territory through the line of Shelah, and links the wider clan to the linen-working houses of Ashbea.