Mezue nkebi ahịrịokwu a: Ná mmalite narị afọ nke 14, mgbe Boleslaw-Yuri nke Abụọ nke Galicia, bụ́ Eze Rus, nwụsịrị, a malitere ịlụ agha maka ọchịchị ya. Ka oge na-aga, Duchy ketara site n'aka onye isi Yuri, nwa Narimantas (Jerzy Narymuntowicz) nke Grand Duchy nke Lithuania. Oge ọchịchị Yuri nke Belz (1340-1377) hụrụ
Agha Galicia-Volhynia; Belz nọchibidoro ọtụtụ oge (na 1351, 1352 na 1355). Site na 1378 ruo 1387 ọ dabara na mpaghara mmetụta nke Alaeze Hungary, dịka na 1377 Louis nke Mbụ nke Hungary weghaara Belz; ruo ọtụtụ afọ, onye isi Władysław Opolczyk na-achị duchy n'aha Louis. N'oge ahụ, Poland nọ na njikọ dị mkpirikpi na Hungary, mana na 1387, mgbe njedebe nke njikọ ahụ gasịrị, Eze Nwanyị Jadwiga nke Alaeze Poland weghaara Belz.