Friedelind Wagner (29 March 1918 – 8 May 1991) was the daughter of German opera composer Siegfried Wagner and his English wife, Winifred Williams and the granddaughter of the composer Richard Wagner.
 Born in Bayreuth, she was known by the nickname "Die Maus" or "Mausi".
 Along with other members of her family, from early in life Friedelind Wagner was involved with the Bayreuth Festspielhaus.
 In 1936, she began work as an assistant to Heinz Tietjen but her outspoken criticism of close family friend Adolf Hitler and the policies of the Third Reich led to her leaving Germany in 1939.
 She lived for a short time in Switzerland before emigrating first to England where she began writing anti-Nazi columns for the "Daily Sketch" newspaper.
The Bayreuth Festival (German: Bayreuther Festspiele ) is a music festival held annually in Bayreuth, Germany, at which performances of operas by the 19th-century German composer Richard Wagner are presented.
 Wagner himself conceived and promoted the idea of a special festival to showcase his own works, in particular his monumental cycle "Der Ring des Nibelungen " and "Parsifal".
The Bayreuth canon consists of those operas by the German composer Richard Wagner (1813–1883) that have been performed at the Bayreuth Festival.
 The festival, which is dedicated to the staging of these works, was founded by Wagner in 1876 in the Bavarian town of Bayreuth, and has continued under the directorship of his family since his death.
 Although it was not originally held annually, it has taken place in July and August every year since the 75th anniversary season in 1951.
 Its venue is the Bayreuth Festspielhaus, which was built for the first festival.
 Attendance at the festival is often thought of as a pilgrimage made by Wagner aficionados.
Parsifal (WWV 111) is an opera in three acts by German composer Richard Wagner.
 It is loosely based on "Parzival" by Wolfram von Eschenbach, a 13th-century epic poem of the Arthurian knight Parzival (Percival) and his quest for the Holy Grail (12th century).
Uwe Eric Laufenberg (born 11 December 1960) is a German actor, stage director for play and opera, and theatre manager who has directed at international opera houses and festivals, such as "Elektra" at the Vienna State Opera and "Parsifal" at the Bayreuth Festival.
Cosima Wagner (born Francesca Gaetana Cosima Liszt; 24 December 1837 – 1 April 1930) was the illegitimate daughter of the Hungarian pianist and composer Franz Liszt and Marie d'Agoult.
 She became the second wife of the German composer Richard Wagner, and with him founded the Bayreuth Festival as a showcase for his stage works; after his death she devoted the rest of her life to the promotion of his music and philosophy.
 Commentators have recognised Cosima as the principal inspiration for Wagner's later works, particularly "Parsifal".
The Bayreuth Festspielhaus or Bayreuth Festival Theatre (German: Bayreuther Festspielhaus , ] ) is an opera house north of Bayreuth, Germany, dedicated solely to the performance of stage works by the 19th-century German composer Richard Wagner.
 It is the venue for the annual Bayreuth Festival, for which it was specifically conceived and built.
 Its official name is Richard-Wagner-Festspielhaus .
Siegfried Wagner (6 June 18694 August 1930) was a German composer and conductor, the son of Richard Wagner.
 He was an opera composer and the artistic director of the Bayreuth Festival from 1908 to 1930.
Bayreuth (] ; ) is a sizeable town in northern Bavaria, Germany, on the Red Main river in a valley between the Franconian Jura and the Fichtelgebirge Mountains.
 The town's roots date back to 1194.
 In the early 21st century, it is the capital of Upper Franconia and has a population of 72,148 (2015).
 It is world-famous for its annual Bayreuth Festival, at which performances of operas by the 19th-century German composer Richard Wagner are presented.
Katharina Wagner (born 21 May 1978 in Bayreuth) is a German opera stage-director and co-director of the Bayreuth Festival.
 She is the daughter of Wolfgang Wagner, great-granddaughter of Richard Wagner, and great-great granddaughter of Hungarian composer Franz Liszt.

Question: What three act opera by German composer Richard Wagner did Uwe Eric Laufenberg direct at the Bayreuth Festival?
Answer: Parsifal