Complex sentence: In some cases, pseudonyms are adopted because they are part of a cultural or organizational tradition: for example devotional names used by members of some religious institutes, and "cadre names" used by Communist party leaders such as Trotsky and Lenin.
Split into simpler sentences: In some cases, pseudonyms are adopted because they are part of a cultural or organizational tradition. This has been the case of devotional names used by members of some religious institutes, and "cadre names" used by Communist party leaders such as Trotsky and Lenin.