Blazon: Party of six; I and VI azure three mounts in base or surmounted by as many feathers argent, II and IV or a double-headed eagle displayed sable, III and V argent a chain in saltire sable
Concini was awarded the additional quarters with the eagle in 1610 as part of his ascension to Marquis de l’Ancre, though I am not sure of its origin. It does not seem to be related to the German arms.
Blazon: Azure a four-arched bridge or over water in base barry wavy argent and the field; in chief an anchor of the second between two feathers in saltire of the third, all cotised by two wolves’ heads respectant erased of the second, armed of the third, langued gules
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: Sable three feathers palewise, each impaling a scroll charged with “Ich Dien.”
It should be noted that the Black Prince officially bore the arms of England with the customary label argent; the arms pictured above were used “for peace,” i.e. jousts and tournaments, and they functioned more as a badge than as a coat of arms proper.