She died in the city of León on 8 November 1067.
She was interred in the Royal Pantheon of the Basilica of San Isidoro, along with her parents, brother, husband, and her children Elvira, Urraca and García.

The following Latin inscription was carved in the tomb in which were deposited the remains of Queen Sancha:
"H. R. SANCIA REGINA TOTIUS HISPANIAE, MAGNI REGIS FERDINANDI UXOR.
FILIA REGIS ADEFONSI, QUI POPULAVIT LEGIONEM POS DESTRUCTIONEM ALMANZOR.
OBIIT ERA MCVIII.
III N. M."
Which translates to:
"Here lies Sancha, Queen of All Spain, wife of the great king Ferdinand and daughter of king Alfonso, who populated León after the destruction of Almanzor.
Died 3 November 1108."
She died in the city of León on 8 November 1067. She was interred in the Royal Pantheon of the Basilica of San Isidoro, along with her parents, brother, husband, and her children Elvira, Urraca and García.
The following Latin inscription was carved in the tomb in which were deposited the remains of Queen Sancha:
"H. R. SANCIA REGINA TOTIUS HISPANIAE, MAGNI REGIS FERDINANDI UXOR. FILIA REGIS ADEFONSI, QUI POPULAVIT LEGIONEM POS DESTRUCTIONEM ALMANZOR. OBIIT ERA MCVIII. III N. M."
Which translates to:
"Here lies Sancha, Queen of All Spain, wife of the great king Ferdinand and daughter of king Alfonso, who populated León after the destruction of Almanzor. Died 3 November 1108."
Sancha of León