Question: Westfield Fashion Square is a shopping mall in this neighborhood in the San Fernando Valley region founded in which year?

Context paragraphs:
Our Lady of the Valley: Our Lady of the Valley is a large Catholic church and school located in the Canoga Park section of Los Angeles, California.  It is the oldest parish in the western San Fernando Valley, having been established in 1921.  When the parish was established, the western Valley was sparsely populated, and most of the 620 parishioners were involved in agriculture with livestock or walnut and orange groves.  At the time of its formation, the parish’s boundaries covered 400 sqmi from the Pacific Ocean to the south, the Ventura County line to the west, White Oak Avenue to the east, and the Santa Susana Mountains to the north.  In the years after World War II, the San Fernando Valley shifted from agriculture to residential communities, and the Catholic population also swelled.  The 400 sqmi served by Our Lady of the Valley were carved up among nine sister parishes.  Though its territory has been reduced to four square miles, the parish has grown from 620 parishioners to over 4100 families.

Fashion Square Mall: Fashion Square Mall is an enclosed shopping mall located in the northern edge of Saginaw Charter Township, Michigan.  It lies within the boundaries of M-84 (Bay Road) to the west, Tittabawassee Road to the north, Fashion Square Blvd. to the east, and Schust Road to the south.  The mall serves the city of Saginaw, its suburbs, and the greater Great Lakes Bay Region .  It features more than 100 tenants, including a food court, and its anchor stores are JCPenney, Macy's and Sears.

Lopez Adobe: Lopez Adobe, located at 1100 Pico Street in San Fernando, California, is one of the two oldest private residences in the San Fernando Valley.  Built by early settlers of the San Fernando Valley a short distance from the San Fernando Mission, it was listed on the National Register of Historic Places in 1971.

César Chávez Learning Academies: The César E. Chávez Learning Academies, also known as Valley Region High School 5 (VRHS #5), is a public high school of the Los Angeles Unified School District.  It is located in the City of San Fernando in the San Fernando Valley region of the Los Angeles metropolitan area.  It is named after César Chávez.

Van Nuys: Van Nuys is a neighborhood in the central San Fernando Valley region of the city of Los Angeles, California.  It is home to the Van Nuys Airport, the Valley Municipal Building, and is the only neighborhood in the San Fernando Valley with a population exceeding 100,000 residents.

Hollywood Freeway: The Hollywood Freeway is one of the principal freeways of Los Angeles, California (the boundaries of which it does not leave) and one of the busiest in the United States.  It is the principal route through the Cahuenga Pass, the primary shortcut between the Los Angeles Basin and the San Fernando Valley.  It is considered one of the most important freeways in the history of Los Angeles and instrumental in the development of the San Fernando Valley.  It is the second oldest freeway in Los Angeles (after the Arroyo Seco Parkway).  From its southern end at the Four Level Interchange to its intersection with the Ventura Freeway in the southeastern San Fernando Valley (the Hollywood Split), it is signed as part of U.S. Route 101.  It is then signed as State Route 170 (SR 170) north to its terminus at the Golden State Freeway (Interstate 5).

Sylmar, Los Angeles: Sylmar is a neighborhood in the San Fernando Valley region of Los Angeles, California.  Historically, known for its profusion of olive orchards, Sylmar can trace its past to the 18th century and the founding of the San Fernando Mission.  In 1890 olive production was begun in a systematic manner.  The Sylmar climate was also considered healthy, and so a sanitarium was established, the first in a series of hospitals in the neighborhood.  There are fourteen public and eight private schools within Sylmar.

Sierra Madre Fault Zone: Situated at the boundary to the San Gabriel Valley and San Fernando Valley, the Sierra Madre Fault Zone (also known as the Sierra Madre-Cucamonga Fault) runs along the southern edge of the San Gabriel Mountains for a total of 95 km , where the northwesternmost 19 km comprises the San Fernando Fault (the section responsible for the 1971 San Fernando earthquake).  A 1980s paleoseismic study that included a trench investigation and mapping revealed that a major earthquake had most likely not occurred to the east of the San Fernando rupture area for at least the last several thousand, and possibly the last 11,000 years.

Sherman Oaks, Los Angeles: Sherman Oaks is a neighborhood in the San Fernando Valley region of Los Angeles, California, founded in 1927 with boundary changes afterward.  The neighborhood includes a portion of the Santa Monica Mountains, which gives Sherman Oaks a lower population density than some other areas in Los Angeles.

Westfield Fashion Square: Westfield Fashion Square, formerly Sherman Oaks Fashion Square, is a shopping mall in the Sherman Oaks area of Los Angeles, California and Van Nuys, Los Angeles.  It is owned by Westfield Group.  Its anchor stores are Bloomingdale's and Macy's.

Supporting paragraphs: Westfield Fashion Square Sherman Oaks, Los Angeles
Answer: 1927