For The floruit of Tskir and Ezra, Bishops of Ancha

According to the Vita of Grigol Khandzteli, Ezra I of Ancha represents the Dapanchuli noble family. The Dapanchuli family was one of the powereful feudal houses in Georgia.
Ezra of Ancha is considered the author of a 20th January chant of Eptvime of Palestine included in the Iadgari by Mikael Modrekili (Kekelidze 1980, 177). He was the comtemporary of Adarnase Kourapalates’ son Prince of Princes Bagrat.
Valeri Silogava dates Ezra’s floruit to the 930s-940s CE because under Price of Princes Bagrat he means Adarnase II, son of the King of the Georgians. Nevertheless, having scrutinized various sources on this issue, I would like to express an different viewpoint (Silogava and Shengelia 2006, 56).
There are two Adarnase Kourapalates who had sons named Bagrat mentioned in the Chronicle by Sumbat Davitis Dze: King of the Georgians Adarnase II and Adarnase III Kourapales, father of David III Kourapalates (Sumbat Davitis Dze 2008, 368-369).
So far, we have not found any source that would verify the activity of Price of Prices Bagrat, son of the King of the Georgians Adarnase II. According to Ishkhani inscriptions, Bagrat held the title of King of the Georgians between 937-945 (Takaishvili 1960, 22), whereas he is referred to as only Magistros in the Chronicle by Sumbat Davitis Dze, in the Vita of Grigol Khandzteli and by Constantine Porphyrogenitus (Sumbat Davitis Dze 2008, 368; Merchule 1963, 316; Kaukhchishvili 1952, 269, 271). Vakhushti Batonishvili remarks that Bagrat had the title of Kourapalates together with title of Magistros (Batonishvili 1979, 699 ).
According to Sumbat Davitis Dze, his contemporary Great Prince of Princes Gurgen received this title in 918 CE after Ashot Kukhi’s death. The same source states that Gurgen died on the 14th of February 914 CE (Sumbat Davitis Dze 2008, 368). As Anri Bogveradze points out, it can be assumed that after Gurgen’s death Sumbat, son of Adarnase II was assigned as Prince of Princes. During the writing of the Vita of Grigol Khandzteli, that is, in 951 CE Sumbat possessed the title of Prince of Princes (Merchule 1963, 316). Furthermore, it is worthwhile to note that within the Bagrationi house different persons never held one and the same title at a time that must have been one of the signs of their collective governance (Bogveradze 1993, 22, 32).
Taking into account the floruit of Prince of Princes Bagrat, son of Adarnase III Kourapalates, we can date Ezra’s activities in the Ancha eparchy back to the 960s CE.