Fernando IV of Castile King of Castile & Leon & Constance of Portugal 
Fernando IV of and Constance of were married in a religious ceremony in 1302 in Valladolid, Spain.1 They had a son named el Justo.
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Personal Details
Fernando IV of Castile King of Castile & Leon
Fernando IV of was born on December 6th, 1285 in Sevilla, Spain.2 He died at the age of 26 on September 7th, 1312 in Jaen, Spain.3
Constance of Portugal
Constance of was born on January 3rd, 1290.4 She died at the age of 23 on November 17th, 1313.5
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Children
Alfonso XI (el Justo) Castile King of Castile & Leon
Alfonso XI, known as el Justo, was born on August 11th, 1311 in Salamanca, León, Spain.6 He died at the age of 38 on March 26th, 1350 in Gibraltar.7