
Given the following passage

"In Ruthenia the nobility gradually gravitated its loyalty towards the multicultural and multilingual Grand Duchy of Lithuania after the principalities of Halych and Volhynia became a part of it. Many noble Ruthenian families intermarried with Lithuanian ones.",

answer the following question. Note that the answer is present within the text.

Question: What happened to Grand Duchy of Lithuania after the principalities of Halych and Volhynia became a part of it? 

multicultural and multilingual
