Leonor and Horta kept the coat of arms granted to the city, together with the title "most loyal" bestowed by King Louis I in 1865. Angra do Heroísmo, despite having its traditional coat of arms replaced in 1939 by a completely new design intended to be standards-compliant, decided in 2013 to readopt its old coat of arms granted to the city by Queen Mary II in 1837, even though it defied the standards in the inclusion of a crest, in the divisions of the field and in not using the round bottom shape shield. Accordingly, with Law no. 53/1991 of 7 August 1991, the Portuguese municipalities, freguesias, cities and towns had the right to bear three types of standardized heraldic symbols: the coat of arms, the flag and the seal. Coats of arms follow a standard design that consists of a shield topped by an mural crown and under it a scroll. The shield is required to be of the round-bottom shape (Portuguese shield). The mural crown defines the rank of the seat of the local government, being five apparent towers or for Lisbon as the capital city, five towers argent for the other cities, four towers argent for towns and three towers argent for villages and urban freguesias. The scroll contains the name of the seat of the municipality or freguesia, including possible honorific titles associated with it. Alternatively, the scroll may include a motto, although this is very rare. The coat of arms may also include the insignias of the decorations awarded to the municipality or freguesia. The blazon of the shield must obey the general Portuguese heraldry rules, which follow general European tradition. Some of the specific Portuguese heraldic norms followed include the interdiction of the inclusion of the Portuguese shield (unless it is defaced), the use of only the seven traditional tinctures (excluding others like the orange allowed in the heraldry of some other countries), and the permission to use mottos and legends inside the field of the shield. In municipal heraldry there is also the interdiction of the use of divisions of the field that cause a split in their meaningful whole. The flags of the municipalities and freguesias may follow one of the following three standard designs, regarding their field: gyronny of eight pieces, quarterly or single tincture. Tinctures used are those corresponding to the dominant metal and/or color of the coat of arms.