Patwin people

The Patwin (also Patween, Southern Wintu) are a band of Wintun people native to the area of Northern California. The Patwin comprise the southern branch of the Wintun group, native inhabitants of California since approximately 500 AD.

The Patwin were bordered by the Yuki in the northwest; the Nomlaki (Wintun) in the north; the Konkow (Maiduan) in northeast; the Nisenan (Maiduan) and Plains Miwok in the east; the Bay Miwok to the South; the Coast Miwok in the southwest; and the Wappo, Lake Miwok, and Pomo in the west.

The "Southern Patwins" lived between what is now Suisun, Vacaville and Putah Creek. By 1800 they had been forced by Spanish and other European invaders into small tribal units: Ululatos (Vacaville), Labaytos (Putah Creek), Malacas (Lagoon Valley), Tolenas (Upper Suisun Valley), and Suisunes (Suisun Marsh and Plain).

The Patwin spoke a Southern Wintuan language called Patwin.

Estimates for the pre-contact populations of most native groups in California have varied substantially. (See Population of Native California.) Alfred L. Kroeber put the 1770 population of the Wintun, including the Patwin, Nomlaki, and Wintu proper, at 12,000.Sherburne F. Cook (1976a:180-181) estimated the combined population of the Patwin and Nomlaki at 11,300, of which 3,300 represented the southern Patwin. He subsequently raised his figure for the southern Patwin to 5,000.

...
Wikipedia