Coat of arms of the Earl Spencer 
Coronet: A Coronet of an Earl
Crest: Out of a Ducal Coronet Or a Griffin's Head Azure gorged with a Bar Gemelle Gules between two Wings expanded of the second
Escutcheon: Quarterly Argent and Gules in the 2nd and 3rd quarters a Fret Or over all on a Bend Sable three Escallops of the first
Supporters: Dexter: A Griffin per fess Ermine and Erminois gorged with a Collar Sable the edges flory-counterflory and chained of the last and on the Collar three Escallops Argent; Sinister: A Wyvern Erect on his tail Ermine similarly collared and chained

Motto: Dieu Defend Le Droit (God defend the right)
Own work
Horemhat using elements by Sodacan