The Patwin (also Patween, Southern Wintu) are a Wintun people native to the area of Northern California. The Patwin were a southern branch of the Wintun group and native inhabitants of California from 1,000 up to 4,000 years.
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 Valley Miwok in the east; 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 European invaders into small tribal units - Ululatos (Vacaville), Labaytos (Putah Creek), Malacas (Lagoon Valley), Tolenas (Upper Suisun Valley) and Suisunes (Suisun Marsh and Plain).
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(Note from Harvest--Don't you just love it when they talk about living people as if they are extinct? This is from Wikipedia--so it can be edited. Perhaps one of you can get this up-to-date and then resend in the link. Meanwhile if any of you see any news or events related to living Patwin people, be sure to send it in . . .)