Complex sentence: The chain changed its name to "Wienerschnitzel" ("sans " article) in 1977, though many franchises retained the older name on their restaurants and some older customers still refer to the chain as"Der Wienerschnitzel".
Split into simpler sentences: The chain changed its name to "Wienerschnitzel" ("sans " article) in 1977, though many franchises retained the older name on their restaurants. Also, some older customers still refer to the chain as"Der Wienerschnitzel".