Richeza of Poland. Mafalda died in her childhood at an unrecorded date. Sancho, the future King Sancho I of Portugal (11 November 1154– 26 March 1211). He was baptised with the name of Martin for having been born on the saint's feast day.; John (1156 – 25 August 1164); and Sancha (1157 – 14 February 1166/67), born ten days before the death of her mother, Sancha died before reaching the age of ten. on the 14th of February according to the death registry at the Monastery of Santa Cruz (Coimbra) where she was buried. Notes References Bibliography |- 1120s births 1158 deaths 12th-century people from Savoy 12th-century Portuguese people 12th-century Portuguese women Matilda Portuguese queens consort 12th-century Italian women