KONSTANTINOS Diogenes (-killed in battle Antioch [1074]). His parentage is confirmed by Nikeforos Bryennios who names him "Constantino Diogenis iam imperatoris filio" when recording his marriage[682]. Nikeforos Bryennios records that "sororis eius Constantinus imperatoris Diogenis filius" was killed in battle in Antioch[683]. m ([1068/71]) THEODORA Komnene, daughter of IOANNES Komnenos, domestikos & his wife Anna Dalassena ([1053]-after [1094/95]). Nikeforos Bryennios records the marriage, after her father's death "matris voluntate", of "Ioannes…Comnenus curopalates…postrema Theodora [filia]" and "Constantino Diogenis iam imperatoris filio"[684]. The Alexeiad names "Theodora, the emperor's sister…widow of Diogenes's murdered son", when recording her reaction to an imposter pretending to be her husband who had been killed in Antioch[685]. The text names the son "Leon" but it is clear from the context that it must refer to Konstantinos, who was killed when his half-brother Leon was still an infant. She became a nun as XENA. Konstantine Diogenes & his wife had [one] child