Who was who in The Plantagenet period in Nobility? What role was there in the Royal court during the Plantagenet period?

Nobility and roles in the Royal Court were important in Plantagenet England. Many families would go to great lengths to rise in their position. No position was completely safe. People could use what they know, about whom they knew in order to climb the ladder. In some cases, it could also be the higher a person climbs, the greater they may fall, even to the point of losing all their lands and titles, and sometimes even their own life in the process