The dynasty was a vassal of Zakarid Armenia during the 13th–14th century CE, established as nakharar feudal lords as a reward for their military successes.

[1] Zakarid Armenia was itself vassal of the Kingdom of Georgia from 1201, effectively falling under Mongol control after 1236, while Georgian rule only remained nominal.

Later, in the early 13th century, the Georgians captured the Syunik region from the Kipchak Eldiguzids, a successor state of the Seljuks (Georgian–Seljuk wars).

With the establishment of the Zakarid Principality of Armenia in 1201 under the Georgian protectorate, Kecharuyk witnessed a significant rise in economic and cultural life under the rule of the Khaghbakyan and later the Proshyan noble families, during the 13th and the 14th centuries.

After the fall of the Ilkhanate in the mid-14th century, the Zakarid princes ruled over Lori, Shirak, Kotayk, and Ararat plain until 1360 when they fell to the invading Turkic tribes of the Timurids and Qara Qoyunlu.

[5][6] Prosh's uncle Grigor Khaghbakian (died in 1220–1223) was a relatively well-known Prince who left some religious buildings and works of art, and sacrificed himself in the conflict with the Kipchaks in c. 1222.

[4][3] The Khachqar cross dedicated by Grigor Khaghbakian in 1233, now located near Etchmiadzin Cathedral, is considered as one of the finest, with its detailed and refined openwork sculpture.

[19] Prosh Khaghbakian was involved in the development of the Geghard medieval monastery in the Kotayk province of Armenia, partially carved out of the adjacent mountain and surrounded by cliffs.

[24][25] Eachi Proshian (-1318) is depicted in one reliefs from Spitakavor, and on a golden reliquary, he which he shown holding his hands up in prayer, and wearing a Mongol-style dress (cloud collar).

[22][29] In these depictions, the Proshyans wear close-fitting clothing with an ornate belt and tall hats, and have round cheeks and almond-shaped eyes in a style characteristic of Mongol-era Armenia.

[31] Prince Eacchi Proshian on his reliquary, dated circa 1300, is shown wearing a Mongol-style royal dress (cloud collar).