Rancho San Lorenzo was a 26,722-acre (108.14 km2) Mexican land grant given in 1841 by Governor Juan Alvarado to Guillermo Castro a career soldier posted
Fidel Alejandro Castro Ruz (/ˈkæstroʊ/ KASS-troh, Latin American Spanish: [fiˈðel aleˈxandɾo ˈkastɾo ˈrus]; 13 August 1926 – 25 November 2016) was a Cuban
Rancho San Lorenzo may refer to these Mexican land grants in California: Rancho San Lorenzo (Castro), 1841, in Hayward, San Lorenzo, and Castro Valley Rancho
000 acre (110 km2) land grant given to Castro in 1840, called Rancho San Lorenzo. This land grant included Hayward, San Lorenzo, and Castro Valley, including Crow Canyon