Question: What was the 21st, last and northernmost mission in Alta California, and is located on a part of a California State Park located in the center of Sonoma, California ?
Sentence (from "Sonoma State Historic Park"): The park consists of six sites: the Mission San Francisco Solano, the Sonoma Barracks (sometimes called the Presidio of Sonoma), the Blue Wing Inn, La Casa Grande, Lachryma Montis, and the Toscano Hotel.
Relevant evidence: No