Henry the Young King
After Richard had subdued his rebellious barons he again challenged his father. From 1180 to 1183 the tension between Henry and Richard grew, as King Henry commanded Richard to pay homage to Henry the Young King, but Richard refused. Finally, in 1183 Henry the Young King and Geoffrey, Duke of Brittany, invaded Aquitaine in an attempt to subdue Richard. Richard's barons joined in the fray and turned against their duke. However, Richard and his army succeeded in holding back the invading armies, and they executed any prisoners. The conflict paused briefly in June 1183 when the Young King died. With the death of Henry the Young King, Richard became the eldest surviving son and therefore heir to the English crown. King Henry demanded that Richard give up Aquitaine (which he planned to give to his youngest son John as his inheritance). Richard refused, and conflict continued between them. Henry II soon gave John permission to invade Aquitaine.