File:Heraldry, west face, Hylton Castle.jpg

English: Photograph of the west face of en:Hylton Castle with added numbers superimposed on the heraldic shields. They are believed to show the political alliances of the early Hyltons, as the banner of the king, and the arms of nobles and knights of Northumberland and the County Palatine of Durham are shown.[27] In relation to the photograph, the shields are: (Source:https://military.wikia.org/wiki/Hylton_Castle#Heraldry quoting originasl source

"heraldry Friends of Hylton Dene")

• 1:England and France quarterly – The banner of Henry IV of England
• 2:Quarterly 1 and 4: Or a Lion rampant Azure (Percy); 2 and 3: Gules, three luces haurient Argent (Lucy) – Henry Percy, 1st Earl of Northumberland
• 3:Percy (unquartered) – Sir Henry "Hotspur" Percy (son of the above)
• 4:A Lion rampant debruised by a bend – Sir Peter Tilliol
• 5:Within a bordure two Lions passant – Felton of Edlington
• 6:Azure, three herons Argent – Sir William Heron
• 7: A Lion rampant – believed to be the Royal coat of arms of Scotland
• 8:Quarterly, Argent, two bars Azure and Or six annulets Gules (Hylton quartering Hylton of Swine) – The Westmoreland branch of the Hyltons.
• 9:Argent, a fess Gules inter three popinjays Vert – Sir Ralph Lumley (later Baron Lumley)
• 10:A Lion within a bordure engrailed – Sir Thomas Grey (or his son)
• 11:Or and Gules quarterly, over all on a bend three scallops – Sir Ralph Evers (Eure)
• 12:Azure, a chief dancette Or – FitzRanulph of Middleham
• 13: Argent, two bars, and three mullets in chief – Sir William Washington
• 14: Argent, a fess inter three crescents Gules – Sir Robert Ogle
• 15: William de Ros, 7th Baron de Ros
• 16: Ermine, on a canton Gules an orle Or – Sir Thomas Surtees
• 17:Ermine, three bows Gules – Sir Robert Bowes (ancestor of Elizabeth Bowes-Lyon)
• 18:Thomas Weston, chancellor to Bishop Skirlaw
• 19:Walter Skirlaw (Bishop of Durham 1388–1406)
• 20: Argent, two bars Azure – Sir William Hylton

Although it was necessary for Briggs to move the Hylton banner to make way for a new entrance, it can be seen from a colour version of Bucks' engraving that the shields were previously placed not as they are today (particularly Weston and Skirlaw's). Briggs is believed to have re-arranged the shields, disrupting their original hierarchical arrangement. Nevertheless, the arms give a date for the construction and completion of the castle as between 1390 and the early 15th century, due to the following reasons:

   The Earl of Northumberland quartered the arms of his second wife, Maud Lucy, after their marriage in c.1384.
   Sir Henry "Hotspur" Percy did not quarter his own arms with those of Lucy, until he inherited the Honour of Cockermouth from his stepmother in 1398.

The arms shown of Henry IV are those he adopted c. 1400, after adopting France modern.