One of the thirteen allied lineages. Kumatz means “snake” or “serpent” in K’iche’ (see e.g. Q’ukumatz)
Christenson (pp. 204–205, note 515): “The Cumatz also settled near the present-day town of Sacapulas (Recinos 1950, 171 n. 6). The Cumatz settlement may be the site of Chutixtiox, located on a hill at the center of the Sacapulas basin approximately three kilometers west of the modern town of Sacapulas (Fox 1978, 71–77). The Cumatz were subjugated by the Quichés early in the fifteenth century as part of the Lord Quicab’s campaign of expansion (Recinos and Goetz 1953, 93; Recions 1957, 141).”
Tedlock (p. 355) adds that the Spanish knew the Kumatz by the Nahuatl-derived version of their name, Coatecas, and resettled them near Sacapulas along with the Lamakib’.