Conversation so far:
When did Tristan Tzara change his name?
In summer of 1915, Tristan Tzara was signing his pieces with the name Tristan. Ion Vinea claimed that he was responsible for coining the Tzara part of his pseudonym.
Why did Tristan Tzara change his name?
Art historian Serge Fauchereau recounted that Tristan Tzara himself had explained his chosen name was a pun in Romanian, trist în țară, meaning sad in the country.
Are there any other interesting aspects about this Tristan Tzara article?
Colomba Voronca was also dismissing rumors that Tristan Tzara had selected Tristan as a tribute to poet Tristan Corbière or to Richard Wagner's Tristan und Isolde opera.
Did Tristan Tzara have any other names?
S. Samyro, a partial anagram of Samy Rosenstock, was used by Tristan Tzara from his debut and throughout the early 1910s.
Did Tristan Tzara ever have any issues because of his name?
This choice later attracted Tristan Tzara the infamous pun Triste Âne Tzara (French for Sad Donkey Tzara).
Did anyone else use Tristan Tzara's name after he used it?
An international poetry award is named after Tristan Tzara (Prix International de Poésie Tristan Tzara).

Question: What else is important about his name?
Self-contained rewrite: What else is important about Tristan Tzara's name?