The [[coat-of-arms]] of Tenerife was granted by royal decree on 23 March 1510 by [[Ferdinand the Catholic]] at [[Madrid]] in the name of [[Joanna of Castile|Joan I]], Queen of Castile. The coat-of-arms has a field of gold, with an image of [[Saint Michael]] ([[patron saint]] of the island) above a mountain depicted in brownish, natural colors. Flames erupt from the mountain, symbolizing El Teide. Below this mountain is depicted the island itself in [[Vert (heraldry)|vert]] on top of blue and silver waves. To the right there is a castle in [[gules]], and to the left, a lion [[Attitude (heraldry)|rampant]] in gules. The shield that the Cabildo Insular, or Island Government, uses is slightly different from that used by the city government of La Laguna, which utilizes a motto in the arms' border and also includes some palm branches.