Plantagenet
Concise Oxford English Dictionary © 2008 Oxford University Press:
Plantagenet /planˈtadʒɪnɪt/
▶noun a member of the English royal dynasty which held the throne from 1154 until 1485.
– origin from L. planta genista ‘sprig of broom’, said to be worn as a crest by and given as a nickname to Geoffrey, count of Anjou, the father of Henry II.
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