#4 William de Percy
Born - Bet. 1193 - 1202
 
#3 Henry - 7th Baron - de Percy
Born - Bet. 1228 - 1235

  #4 Eleana (Ellen) de Balliol
 

#2 Henry - 1st Lord Baron of Ainwick - de Percy
Born - March 25, 1273
 
#3 Alianore (Eleanor) Plantagonet de Warren
   
             #1 Henry - 9th Baron - Baron Percy 2nd - de Percy
             Born - February 06, 1299/00 in Leconfield, Yorkshire

   

#2 Eleanor Flizaian