Since the Radziwiłłs were one of the most important and wealthy clans of the Grand Duchy of Lithuania and the Crown of the Kingdom of Poland, it was there that the Lithuanian Archive was moved in 1551.
Întrucât Radziwiłłii erau unul dintre cele mai importante și mai bogate familii nobiliare din Marele Ducat al Lituaniei, acolo au fost mutate Arhivele Lituaniene în 1551.