This faction had men such as Thomas Usk, Simon Burley and Nicholas Brembre executed. The impeachment of Michael de la Pole in the so-called Wonderful Parliament led to the ascension of this group, and their victory at the Battle of Radcot Bridge over Robert de Vere resulted in unlimited power for them. This group was led by Thomas of Woodstock, the first Duke of Gloucester, and in the Merciless Parliament, this faction purged the entire royal court and made the king a puppet. The power of this group waned with the return of John of Gaunt to England, and unfortunately for the reigning king, he made the generous decision to not punish the future Henry IV for his participation in this group. For 10 points, name this group of barons which held almost unrestricted power in England from 1387 to 
This faction had men such as Thomas Usk, Simon Burley and Nicholas Brembre executed. The impeachment of Michael de la Pole in the so-called Wonderful Parliament led to the ascension of this group, and their victory at the Battle of Radcot Bridge over Robert de Vere resulted in unlimited power for them. This group was led by Thomas of Woodstock, the first Duke of Gloucester, and in the Merciless Parliament, this faction purged the entire royal court and made the king a puppet. The power of this group waned with the return of John of Gaunt to England, and unfortunately for the reigning king, he made the generous decision to not punish the future Henry IV for his participation in this group. For 10 points, name this group of barons which held almost unrestricted power in England from 1387 to 1389, during the reign of Richard II.
This faction had men such as Thomas Usk, Simon Burley and Nicholas Brembre executed.
{Lords Appellant}