Earl Marshal's
Ordersto be observed and kept by the Officers of Armes made by the high and mighty Prince
Thomas Duke of Norfolke Earle Marischall of England Anno 1568 the xviijth day of July in the Tenth
yeare of the Reign of Queene Elizabeth
An Elizabethan Armorial:
Blazons of the Ancient Paternal
Arms of the Peers of England and Members of the Gentry as Portrayed
in the Guild of Saint George by John Neitz
A Primer of Blazonry: A Visual
Introduction to Heraldry by Paula Katherine Marmor