Coat of arms of Sir George Talbot, 6th Earl of Shrewsbury, KG, quarterings as in the Talbot window in the Long Gallery of Haddon Hall, Derbyshire. Quarterly of 16: (Source: File:HowardArms 15th DukeOfNorfolk 70 Quarterings Brought in by Dacre.png, key to heraldic quarterings, see Joseph Foster, Some Feudal Coats of Arms, London, 1902, p.61 [1]:

• 1:Belleme: Azure a lion rampant and a bordure or (quartered by Talbot) (Burke, Sir Bernard, The General Armory, London, 1884, p.67 "Belismo"; p.43 "Balesmore", p.698 "Montgomery", but with field gules) (Papworth, John Woody, Alphabetical Dictionary of Coats of Arms Belonging to Families in Great Britain and Ireland, Vol.I, London, 1874, p.118 "Balesmore, Belisme, de Belismo (Latinised form), Montgomery, Town of Montgomery, Shropshire, Shrewsbury Abbey (Benedictine)). w:Robert of Bellême, 3rd Earl of Shrewsbury (c. 1052 – after 1130), seigneur de Bellême (or Belèsme), seigneur de Montgomery, viscount of the Hiémois, 3rd Earl of Shrewsbury and Count of Ponthieu, eldest surviving son of Roger of Montgomery, 1st Earl of Shrewsbury and Mabel de Bellême. Burke calls these arms "Montgomery" (Burke, Sir Bernard, The General Armory, London, 1884, p.995)
• 2:Talbot, Earl of Shrewsbury (Talbot (modern)/Rhys Mechyll): Gules, a lion rampant or a bordure engrailed of the last. The modern arms were the paternal arms of Gwenllian, the daughter and heiress of w:Rhys Mechyll (d.1244) (Lord of Dinefwr, House of Deheubarth, grandson of w:Rhys ap Gruffydd), and wife of Gilbert Talbot (d.1274), grandfather of w:Gilbert Talbot, 1st Baron Talbot (d.1345/6) (http://www.tudorplace.com.ar/TALBOT.htm#Gilbert TALBOT (1° B. Talbot)) assumed by Talbot as arms of alliance of a great heiress, superseding his own former paternal arms of Bendy of 10 pieces argent and gules (Encyclopædia Britannica, 9th.ed. vol. 11, p.691, Heraldry; Debrett's Peerage, 1968, p.1015, E. of Shrewsbury & Waterford). The assumption about Gwenllian however was unfounded as Rhys Mechyll, Lord of Dinefwr, also had male heirs^[1] who acceded to the arms of the House of Deheubarth.
• 3: Talbot (ancient): Bendy of ten argent and gules
• 4: Comyn: w:Elizabeth de Comyn (1299-1372) daughter of w:John III Comyn, Lord of Badenoch, a Scottish nobleman, by his wife Joan de Valence, a daughter of w:William de Valence, 1st Earl of Pembroke. She married w:Richard Talbot, 2nd Baron Talbot (c.1306-1356)
• 5:Valence: w:William de Valence, 1st Earl of Pembroke
• 6: Monchesni Or, three escutcheons barry of six vair and gules
• 7: Marshall Gules, four lozenges in bend or
• 8: Strongbow/de Clare, Earl of Pembroke: Argent, on a chief azure three crosses pattée fitchée of the field (Papworth, John Woody, Alphabetical Dictionary of Coats of Arms Belonging to Families in Great Britain and Ireland, Vol.I, London, 1874, p.571; Burke, Sir Bernard, The General Armory, London, 1884, p.198 "Clare, County Pembroke"). Arms of de Clare, feudal barons of Clare in Suffolk, Earls of Hertford, Earls of Gloucester, usually given as: Or, three chevrons gules). Richard de Clare, 2nd Earl of Pembroke, Lord of Leinster, Justiciar of Ireland (1130 – 20 April 1176), also known as Richard FitzGilbert. Like his father (Gilbert fitz Gilbert de Clare (c. 1100 – 6 January 1148)), Richard FitzGilbert has since become commonly known by his nickname Strongbow. His son and heir Gilbert de Striguil died unmarried before 1189, and the earldom passed via his daughter Isabel to her husband William Marshal
• 9: MacMorogh (Sable, three garbs argent)
• 10: Strange: Argent, two lions passant gules
• 11: Neville
• 12: Furnival
• 13: Verdon
• 14: Lacy: Or, a fess gules
• 15: Or, a lion rampant gules
• 16: Argent, a lion rampant sable