Llywelyn Bren (died 1318), or Llywelyn ap Gruffudd ap Rhys or Llywelyn of the Woods (English), was a nobleman who led a revolt in Wales during the reign of King Edward II of England in 1316. The revolt would be the last serious challenge to English rule in Wales until the attempts of Owain Lawgoch to invade Wales with French support in the 1370s. Hugh the younger Despenser's unlawful execution of Llywelyn Bren helped lead to the eventual overthrow of both Edward II and Hugh.
Read more about Llywelyn Bren: Lineage, Background, The Beginning of The Revolt: The Siege of Caerffili (Caerphilly) Castle, Betrayal and Death, The Aftermath