Coat of arms of Montagu

The blazon

quarterly ; first and fourth, ar. three lozenges, in fesse, gu. within a bordure sa. ; second and third, or, an eagle, displayed, vert. — Crest, a griffin s head, betw. two wings, endorsed, or, gorged with a collar ar. charged with three lozenges gu. Supporters, two unicorns or, crined, armed, and hoofed sa. Motto, Disponendo me non mutando me.

A blazon is the description of a coat of arms in the technical language of heraldry. The drawing comes from that text, and from nothing else.