Peter I Alfonsez (the Cruel of) Castile King of Castile
Peter I Alfonsez, known as the Cruel of, was born on August 30th, 1334 in Burgos, Castile, Spain.²   He died  due to murdered at the age of 34 on March 23rd, 1369 in Monteil.³ 

 Maria de Padilla
Maria was born in 1335.⁴   She died at the age of 30 in 1365 in Burgos, Castile, Spain.⁵ 

 Isabella of Castile
Isabella of was born in 1355 in Morales or Tordesillas, Castile.⁶   She died at the age of 37 on November 23rd, 1392.  She was buried in Hertford, Hertfordshire, England.^7 8 

 Constance of Castile
She died in 1394.