Her parentage is confirmed by Nikephoros Bryennios who records that "uxor Andronici" was "genus a Samuele…Bulgarorum rege, e cuius filio Troianne nata ipsa erat", adding that "materna vero ei prosapia referebatur ad Contostephanos, Aballantes et Phocadas". The Alexeiad records that "the daughter-in-law of the Cæsar Ioannes…protovestiaria" was imprisoned "in the nunnery of Petrion near the Sidera" when the Komnenoi plot against Emperor Nikephoros Botaneiates was discovered, referring to her as "kinswoman" of Anna Dalassena and, in a later passage, stating that she "was of Bulgarian descent".
Protobestiaria. She became a nun as XENE. She received a letter from Leon ex-metropolitan of Chalcedonia dated to 1089/[1094/95]. The typikon of Theotokos Kecharitomenes (dated to [1110]) provides for the commemoration 21 Nov of "la...princesse et mère de ma Majesté, kyra Marie, qui fut appelée...kyra Xénè".
The list of obituaries of the monastery of Christ Philanthropos, founded by Empress Eirene Doukas, records the death 21 Nov of "Xenes monaxes tes metros tes ayias despoines tes protobestiarisses". 1
Also called Maria TROIANE.