Enguerrand de Coucy II & Agnes de Beaugency 
They had a son named Ralph.
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Children
Ralph de Coucy I
Ralph was born in 1139 in Boves, Somme, France.3 He died as a war casualty, siege of Acre, at the age of 52 on November 1st, 1191 in Acre, Jerusalem.3
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=tamer&id=I5602
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I6294&style=TABLE
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I9917&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I6294&style=TABLE
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I9917&style=TABLE