The House of Stuart is a noble family of Scottish origin that eventually became monarchs of Scotland, England, Ireland, and Great Britain.
[citation needed] Branch issued from the marriage of Marie Stuart and Henry Stuart, Lord Darnley, (7 December 1545 – 9 or 10 February 1567), Baron Darnley, Duke of Albany and King consort of Scotland, Or, a lion gules within a double tressure flory counter-flory of the same, armed and langued azure (Scotland), a label argent.
Branch descended from James Crofts, illegitimate son of Lucy Walter and of Charles II of England, Quarterly: I and IV grandquarterly azure three fleurs de lys or France and gules three lions passant guardant or (England); II or, a lion gules, double tressure flory and counter-flory of the same (Scotland); III azure, a harp or, stringed argent (Ireland); a baton sinister couped argent brochant, sur le tout or a bend azure charged with a mullet of six points and two crescents, one in base, the other in chief of the bend, all of the first (Scott).
Branch descended Charles II of England and his mistress Barbara Palmer Quarterly: I and IV grandquarterly azure three fleurs de lys or (France) and gules three lions passant guardant or (England); II or, a lion gules, double tressure flory and counter-flory of the same (Scotland); III azure, a harp or, stringed argent (Ireland); a baton sinister argent charged of six ermine spots sable.
Branch descended from Charles Beauclerk, illegitimate son of Nell Gwynne, mistress of Charles II of England, Quarterly: I and IV, grandquarterly azure three fleurs de lys or (France modern) and gules three lions passant guardant or (England); II, or, a lion gules, double tressure flory and counter-flory of the same (Scotland); III, a harp or, stringed argent (Ireland); a baton sinister couped gules, charged with three roses argent, seeded and barbed vert, brochant sur-le-tout.
Branch descended from Charles Lennox, natural son of Charles II of England, Quarterly: I and IV grandquarterly azure three fleurs de lys or (France modern) and gules three lions passant guardant or (England); II or, a lion gules, double tressure flory and counter-flory of the same (Scotland); III azure, a harp or, stringed argent (Ireland); a bordure compony of sixteen pieces argent and gules, each piece argent charged with a rose seeded or and barbed vert (Lennox).
Quarterly: I and IV or, a lion gules, double tressure flory and counter-flory of the same (Scotland) a bordure azure and argent compony of twelve pieces, II or, a fess chequy azure and argent, and III or three lozenges pommety gules double tressure flory and counter-flory of the same.
Quarterly: I and IV azure three fleurs de lys or, a bordure engrailed or; II and III or, a fess chequy argent and azure of three rows (Stuart) a bordure gules with eight buckles or; sur le tout argent, a saltire gules, between four roses of the same, seeded or and barbed vert (Lennox).
[1] Arms used by: John Stewart (1440 – 15 September 1512, Laighwood), 1st earl of Atholl, Or a fess chequy argent and azure, a bend engrailed gules brochant in chief a mullet of the same.