Blazon: Party of nine; I argent a cross of Calatrava* gules surmounted by a castle triple-towered or, windowed azure (Daimiel); II argent a letter M gules between two locks in base, bendwise and bendwise sinister sable, ensigned with a mural crown or, windowed of the third, in chief three trees eradicated proper fructed of the second (Manzanares); III vert a castle triple-towered or, windowed gules; IV argent a cross of Calatrava* gules surmounted by a castle triple-towered or, windowed azure, between two locks in base bendwise and bendwise sinister sable (Almagro); V argent a cross flory fitchy gules; in dexter chief and sinister base, two escutcheons or, four palets gules, in sinister chief a castle triple-towered or, windowed azure, in dexter base a lion rampant purpre, armed and langued gules, crowned or (Villanueva de los Infantes); VI per quarterly i gules a castle triple-towered or, windowed azure, ii argent a lion rampant gules, crowned or, iii argent a cross of Calatrava gules, iv gules two hammers in saltire or, in the fess point an escutcheon azure three fleurs-de-lis or within a bordure gules (Almadén); VII per pale argent a cross of Calatrava gules and chequy of sable and the first within a bordure of the second charged with eight saltires couped or, pointé in base of the second, a barrel of the fourth (Valdepeñas); VIII argent on a Maltese cross umbrated an escutcheon azure, ona base a castle triple-towered or, windowed of the field, being charged by a knight proper mounted on a horse saliant argent, armored and bearing a sword also proper, his shield and banner gules a cross argent (Alcázar de San Juan); IX per quarterly i gules a cross of Calatrava gules, ii gules a castle triple-towered or, windowed azure, iii argent a tree growing from a base, all proper; iv argent on a hill above a lake in base proper, a tower or windowed sable; overall in the fess point an escutcheon azure, the figure of a king proper on his throne under an arch or supported by two columns argent, within a hexagonal wall of the second, door gules; all within a bordure of the last, eight castles triple-towered of the second, windowed of the field (Ciudad Real)
*A cross couped with the ends terminating in fleurs-de-lis; emblem of the Order of Calatrava, an order of monks-turned-warriors founded in 1157