The Sonoma Mission, officially known as Mission San Francisco Solano, is the northernmost of the 21 California missions established by Spanish settlers. Founded in 1823, it served as a religious and cultural center for the local Native American population and played a significant role in the expansion of Spanish influence in California. Located in Sonoma, California, the mission is notable for its unique architecture and historical significance. It was the last mission built in California and is the only one to be established after Mexico gained independence from Spain. Today, the Sonoma Mission is a popular tourist destination, showcasing California's rich history.