Municipality of the Metropolitan East of the Community of Madrid
In a field of azure, a castle of gold, towered, donjonado, battlemented, mazonated with saber and lightened with azure, supported by waves of silver and azure. Bordered with two crossed branches, one of laurel of sinople, fruited in gules, to the right, and of oak, of sinople, fruited in its color, to the left. To the bell, crown of Infantes of Castile.
Approval: March 5, 1987
BOCM of March 17, 1987
BOE of April 3, 1987
On a red field, at a distance from the halyard equal to one half of its length, the coat of arms of the city of Alcalá de Henares