Baron William de Percy & Emma de Port 
They had a son named Alan.
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Personal Details
Emma de Port
Emma was born in 1038 in Alnwick, Northumberland, England.2 She died at the age of 58 in 1096.2
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Children
Birth Notes
B: Abt. 1067Death Notes
D: Bef. 1135
2nd Baron de Percy Alan de Percy
Alan was born in 1067 in Alnwick, Northumberland, England.1
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I67251&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=andwai&id=I8407
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=andwai&id=I8407