What is "vramshapuh"

Vramshapuh, whose name is also spelt as Vramshapouh, Vramšapuh, Vrhamshapuh, Vram-Shapouh, Bahram Shapur and Bahram-Shahpur (, flourished second half of the 4th century & first half of the 5th century, died 417) was a Prince who served as a Sassanid Client King of Arsacid Armenia from 389 until 417.