Complex sentence: While her party had taken the new name "Czechoslovak National Socialist Party" in 1926, it did not ever have any affiliation with the German National Socialists, and under the leadership of Edvard Beneš purged radical nationalists and fascist collaborators from the party.
Split into simpler sentences: While her party had taken the new name "Czechoslovak National Socialist Party" in 1926, it did not ever have any affiliation with the German National Socialists. Under the leadership of Edvard Beneš purged radical nationalists and fascist collaborators from the party.