For 10 points, identify this 1846 California independence uprising named after an ursine banner.
An incident leading up to it was the theft of General Jose Castro's horses, which was perpetrated by a band led by Ezekiel Merritt. Soon after, Merritt's men captured the house of Colonel Mariano Vallejo and worked with the Grigsby-Ide party in Sonoma to grant territorial control to the American settlers. For 10 points, identify this 1846 California independence uprising named after an ursine banner.
An incident leading up to it was the theft of General Jose Castro's horses, which was perpetrated by a band led by Ezekiel Merritt.
{Bear Flag} Revolt