The most ancient grant of a Coat of Arms found was:
Blazon: Azure (Blue), a Lion Rampant Argent (Silver), crowned Or (Gold), ducally gorged Gules (Red) with a bordure Or (Gold) charged with six fraises.
Key to symbols, colours, and terminology used in Heraldry:
Cross crosslet fitchée (combination of cross and sword) Denotes unshakeable faith
Red/Gules Denotes warrior or martyr; Military strength and magnanimity
Gorged (around neck) Denotes High Dignity
Ducally Relating to a Duke or Duchy: a Ducal Estate
Fraises (strawberry flower) Denotes hope and joy