'''Sem-Yeto''', christened '''Francisco Solano''' and also known as '''Chief Solano''' (1798–1851), was a famous leader of the Suisunes, a Patwin people of the Suisun Bay region of California. Chief Solano was a notable Native American leader in Alta California because of his alliance, friendship, and eventually the support of his entire tribe to General Mariano Guadalupe Vallejo of Sonoma, in military and political excursions around Sonoma County and the San Francisco Bay Area.