Konstantinos of Macedonia & Princess of Armenia Pancalo Bagratidina 
They had two sons named The Macedonian and Bardas.
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Personal Details
Princess of Armenia Pancalo Bagratidina
Pancalo was born in 0785.1 She died at the age of 58 in 0843.1
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Children
Emperor Basileos (The Macedonian) of Byzantium I
Basileos, known as The Macedonian, was born in 0812 in Adrianople, Byzantine Empire.1 He died at the age of 74 on August 29th, 0886.1
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I22960&style=TABLE
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=leemartin72&id=I33053
2 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=leemartin72&id=I33053