Jacob Jehudah Leoni was born in Hamburg in the early half of the 17th century. Although he spent a lot of time in Portugal, he became prominent with work in Amsterdam. He wrote and he designed.
He is believed to have designed the coat of arms of the Antient Grand Lodge of England. The coat of arms was merged with the coat of the United Grand Lodge of England. The coat of arms depicts 2 cherubs, strangely the cherubs have goats legs.
- William James Hughan: Origin of the English Rite of Freemasonry. Kessinger Publishing, 2003 ISBN 0766156982