In our final post of the stall plates of the XXIII Chapter of the Order of the Golden Fleece held in 1559 in St. Bavo's Cathdral, we see the following.
As always, I recommend clicking on an image to see a larger and more detailed photo of these armorial plates.
Anyway, from left to right, we have:
Don Carlos of Spain, eldest son of Phillip II (1545-1568): blank shield.
Alfonso de Aragon y Portugal, Count of Ampurias, 2nd Duke of Segorbe, 3rd Duke Consort of Cardona (1489–1563): blank shield. (His father’s arms were: Paly of three: Dexter, Or four pallets gules (Aragon); Center: Per fess gules and argent a tower or and a lion rampant gules; and Sinister: Per saltire: chief and base, Or four pallets gules; dexter and sinister, Argent an eagle displayed sable (the Two Sicilies).)
Philippe de Stavele, Baron de Chaumont (1508-1562): Ermine a bend gules.
Philippe de Montmorency, Count of Horn (1518-1568): Or a cross gules between sixteen eagles displayed four four four and four sable.
William I, Prince of Orange, seigneur de Breda (1533-1584): Quarterly: 1, Azure billety a lion rampant or; 2, Or a lion rampant gules crowned sable; 3, Gules a fess argent; 4, Gules two lions passant guardant in pale or; overall an inescutcheon: Quarterly: i and iv, Gules a bend or; ii and iii, Or a hunting horn azure stringed gules, overall an inescutcheon Checky of nine or and azure (or, Or a cross quarter-pierced azure) (Châlon-Arlay as Princes of Orange).
Johan I of East Frisia (1506-1572): Per pale: Sable a frauenadler between four mullets pierced or; Per bend azure and gules, two lions rampant or, on a chief or an eagle displayed issuant sable (or, a chief of the Empire).
Francisco Fernando d'Avalos d'Aquino, 5th Marquis of Pescara (?-1571): Quarterly: 1 and 4, Gules a tower or a bordure compony argent and gules; 2 and 3, Quarterly: i and iv, Or three bendlets gules; ii and iii, Per fess argent and gules a lion rampant counterchanged.
Archduke Ferdinand of Austria, Margrave of Burgau, second son of Emperor Ferdinand I (1529-1595): A very complex coat of arms, as you might expect, and one which I am not going to blazon here. Feel free to make the attempt yourself; I won't try to stop you.
Jean de Lannoy, Seigneur de Molembaix (1509-1560): Quarterly: 1 and 4, Argent three lions rampant azure; 2 and 3, Quarterly: i and iv, Gules a winged arm or maintaining a sword erect proper; ii and iii, Argent a lion rampant sable crowned or; overall, an inescutcheon of Burgundy.