Question: Mennonites are traditionally multilingual with which Low Prussian dialect of East Low German, with Dutch influence language was their first?
Sentence (from "Russian Mennonite"): The Russian Mennonites (German: "Russlandmennoniten" occasionally Ukrainian Mennonites) are a group of Mennonites of German language, tradition and ethnicity, who are descendants of German-Dutch Anabaptists who settled for about 250 years in West Prussia and established colonies in the south west of the Russian Empire (present-day Ukraine) beginning in 1789.
Relevant evidence: No