King Ferdinand of Castile II & Urraca of Portugal 
They had a son named Alphonso.
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Personal Details
King Ferdinand of Castile II
Ferdinand was born in 1137.1 He died at the age of 51 on January 22nd, 1188 in Benavente.1
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Children
King Alphonso of Leon IX
Alphonso was born on August 15th, 1171 in Valladolid, Spain.2 He died at the age of 59 on September 24th, 1230 in Villaveuva da Sarria.2
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I6615&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I8321&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I8321&style=TABLE