Sancho III UNKNOWN
Sancho III was born in 1134.  He died at the age of 24 on August 31st, 1158.

 Blanca UNKNOWN
Blanca was born in 1133.  She died at the age of 23 on August 12th, 1156.

 Alfonso Sancho VIII UNKNOWN
Alfonso Sancho VIII was born on November 11th, 1155.