Blazon: Sable on a broken bridge argent over water in base barry wavy gules and azure, on the dexter half a passion cross or, on the sinister a knight in armor proper; in chief a molet of five points with rays of the fifth
The black field may be an allusion to the name of the city (negro meaning “black” in Spanish).
Blazon: Or on a cross of Santiago gules a passion cross vert, in base three lions’ heads erased sable langued gules, all within a bordure barry wavy azure and argent charged with a mount in chief, two towers in dexter and sinister, and a castle in base, alternating with four anchors addorsed, all of the last
Blazon: Per quarterly, I azure three columns or 2 and 1 (Ciudad Rodrigo), II azure five bees volant in saltire or (Béjar), III argent five castles in saltire or, masoned sable, windowed azure (Peñaranda de Bracamonte), IV argent a sword in bend sinister proper surmounted by a feather in bend gules, in chief a passion cross paté azure (Vitigudino); overall a roundel per pall, i argent two lions’ heads combatant issuant from the partition line proper langued gules, ii argent on a bridge proper dexter a bull passant sable and sinister a tree eradicated vert, iii or four palets gules within a bordure azure charged with eight crosses paté argent (Salamanca)
Blazon: Per quarterly; I argent a tower enflamed proper (Arenas de San Pedro); II per quarterly i and iv argent a crow close proper upon a base vert, ii and iii or two trees eradicated proper on a base vert (Piedrahita); III azure a castle triple-towered proper, at its gates a horse saliant bearing a knight with lance argent (Arevalo); IV azure a zebra statant on a base proper (Cebreros); pointé in base azure a bridge of three arches over water in base proper, beneath the central arch a boat also proper supporting a passion cross argent (Barco de Ávila); overall in the fess point an escutcheon gules a cathedral argent, on the outer wall a figure of Don Alfonso crowned and robed proper, in base “Ávila Del Ray” sable (Ávila)