The Suisunes (also called the Suisun and the "People of the West Wind") were a tribe of Native Americans that lived in Northern California's Suisun Marsh regions of Solano County, California between what is now Suisun, Vacaville and Putah Creek around 200 years ago. The Suisune's main village, Yulyul, is believed to be where Rockville, California is located today. Father Abella, visitor to the tribe in 1811, indicated they resided in the present location of Fairfield, north of the Suisun Bay. One of the Suisunes' primary food sources was acorns. Their diet also included fish as well as Miner's Lettuce. Their huts (as recorded by the Spaniards in 1817) were conical wikiups made of rushes or tule thatch.
The Suisunes were one tribe of the Patwin Indians, who were the southern branch of the Wintun group, who had lived in the region for up to 4000 years. Few records have been handed down; approximately 2500-5000 Patwins existed in all.
By 1800, Spain had taken control of most of the Bay Area, having erected seven missions in the Ohlone region south and west of the Suisunes region. The closest mission to the Suisunes was across the San Francisco Bay, Mission San Francisco de Asís. Franciscan missionaries wanted to bring all tribes into the Spanish-controlled missions, pueblos and presidios, however the Spanish had not yet reached north of the present-day Carquinez Strait to the Suisunes. The Suisunes lived sufficiently far away from the first missions to rebel from the incoming Spaniards, and over time they joined with the other Patwin tribes in the central valley region to resist the incursion on their lands and maintain their freedom. They acquired horses from mission runaways and mission outposts.
The Suisunes might have avoided contact for several more decades with the missionaries, however in the early 19th century, Indian runaways from the missions began to seek shelter with the Suisunes. The missions would send Mission Indians to round up "Christian" runaways. The interaction set in motion a chain of Indian battles and growing distrust:
The next year in 1811, perhaps due to the loss of 125 men, a large group of Suisunes gave up the resistance and moved into Mission San Francisco de Asís in present-day San Francisco. A total of 326 Suisunes were baptized at this mission between 1810 and 1816.
In 1817, Jose DeArguello, the commandant of the Presidio of San Francisco sent his lieutenant Jose Sanchez to lead another attack against the Suisunes tribe, believed to have taken place in the hills behind Benicia. The Spaniards subsequently gained ground in present-day Fairfield and Suisun today, reaching the Suisunes' village of Chief Malica, sachem of the tribe. At this village, probably with imminent defeat of his people, Chief Malica and the majority of the tribe chose to end their lives in a tragic mass suicide. The Spaniards witnessed the village's brushy huts burst into flames. The chief chanting and singing, leapt into the flames, followed by the people of the village, including the women with children and babies. The Spaniards tried to save some while several Indians fled into the hills. The remaining tribe survived in the hills or through assimilation, reemerging under the leadership of Chief Sem-Yeto, also known as Chief Solano.
Sem-Yeto (later known as Chief Solano), born about 1800, emerged as the next in line to be the Suisunes chief of the next generation. Sem-Yeto was described as tall, 6 feet 7 inches, handsome and brave. Sem-Yeto was baptized in the San Francisco Mission in July 1810 at roughly age 10 with the name "Francisco Solano" and lived there until adulthood. He became known as Chief Solano. His baptism took place 2 months after the tragedy of 1810. Sem-Yeto was possibly captured as a child in Moraga's raid of 1810 or his family brought him within two months of the battle.
In 1823, Sem-Yeto and the Suisunes people at Mission San Francisco moved into the new mission in the town of Sonoma, California, the Mission San Francisco de Solano, to help build and populate this final Franciscan mission built north of the San Francisco Bay.
In 1834, General Mariano Guadalupe Vallejo of Sonoma, as the comandante of the new pueblo projects in the region, became a very valuable patron and friend to Chief Solano, and formed an alliance with the Suisunes tribe. The mission system was closing down. Chief Solano and the Suisunes led many expeditions with the object of quelling the other tribes of the region, particularly "the Wappo, the Satisyomis (aka Sotoyomes, a Wappo tribe) and the Cainameros (aka the Pomo Indians of Cainama in the region toward Santa Rosa)", who were attempting to throw off Mexican domination. Chief Solano eventually helped to secure peace between the region's Native Americans and the Mexicans. A peace treaty was signed in 1836. With the alliance with General Vallejo, the tribe was relatively powerful.
On a political venture, Vallejo even arranged for and sent Chief Solano and 100 warrior Suisunes to travel down to Monterey, California to impress and seek military support from Juan Bautista Alvarado, governor of Alta California (1836–1837, 1838–1842).
In 1837, a smallpox epidemic decimated the native population of the Sonoma region, as well as from other diseases brought in from the Spaniards as well as the Russians at Fort Ross. Chief Solano was one of the few natives to receive a vaccination.
Chief Solano was also one of a handful of natives to receive a land grant in the mission secularization and parcelling out of Mexican-American lands. The Suisunes that survived the epidemic began to earn their livelihoods through farm labor or fishing. Some chose to work as seasonal or year-round ranch labors for Vallejo at the Rancho Petaluma Adobe or other area ranches.
In 1846, at the end of the Bear Flag Revolt when California was ceded to the United States, General Vallejo was taken prisoner by Americans at Sutter's Fort, Sem-Yeto fled north, and the people continued to earn their living on the ranches of California.
Solano County is named after Chief (Sem-Yeto) Francisco Solano.
Suisun Marsh is named after the Suisunes tribe.