Events

• Richard Duke of York
  Richard Plantagenet, 3rd Duke of York
  Richard Plantagenêt, 3rd Duke of York, 6th Earl of March, 4th Earl of Cambridge, and 7th Earl of Ulster, conventionally called Richard of York was a leading English magnate, great-grandson of King Edward III...
  
  , Lord Lieutenant of Ireland
  Lord Lieutenant of Ireland
  The Lord Lieutenant of Ireland was the British King's representative and head of the Irish executive during the Lordship of Ireland , the Kingdom of Ireland and the United Kingdom of Great Britain and Ireland...
  
  , returns on a second visit to Ireland
  Ireland
  Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...
  
  .
• Irish Parliament, meeting at Drogheda
  Drogheda
  Drogheda is an industrial and port town in County Louth on the east coast of Ireland, 56 km north of Dublin. It is the last bridging point on the River Boyne before it enters the Irish Sea....
  
  , upholds Richard Duke of York
  Richard Plantagenet, 3rd Duke of York
  Richard Plantagenêt, 3rd Duke of York, 6th Earl of March, 4th Earl of Cambridge, and 7th Earl of Ulster, conventionally called Richard of York was a leading English magnate, great-grandson of King Edward III...
  
  's authority against Henry VI
  Henry VI of England
  Henry VI was King of England from 1422 to 1461 and again from 1470 to 1471, and disputed King of France from 1422 to 1453. Until 1437, his realm was governed by regents. Contemporaneous accounts described him as peaceful and pious, not suited for the violent dynastic civil wars, known as the Wars...
  
   and an English Act of Attainder
  Attainder
  In English criminal law, attainder or attinctura is the metaphorical 'stain' or 'corruption of blood' which arises from being condemned for a serious capital crime . It entails losing not only one's property and hereditary titles, but typically also the right to pass them on to one's heirs...
  
  .