Question: The composer of Serenade for Strings in C major, Op. 48 was awarded a lifetime pension by what emperor?

Context articles: Pyotr Ilyich Tchaikovsky
Étude Op. 10, No. 1 (Chopin)
Serenade (ballet)
Roger L. Eddy
Symphony No. 9 (Schubert)
Chromatic mediant
Serenade in C major
Octet (Enescu)
Serenade for Strings (Tchaikovsky)
Marxophone

Pyotr Ilyich Tchaikovsky ( ; Russian: Пётр Ильи́ч Чайко́вский ; 25 April/7 May 1840 – 25 October/6 November 1893), often anglicized as Peter Ilich Tchaikovsky, was a Russian composer of the romantic period, some of whose works are among the most popular music in the classical repertoire.
 He was the first Russian composer whose music made a lasting impression internationally, bolstered by his appearances as a guest conductor in Europe and the United States.
 Tchaikovsky was honored in 1884, by Emperor Alexander III, and awarded a lifetime pension.
Étude Op. 10, No. 1 in C major is a study for solo piano composed by Frédéric Chopin in 1829.
 It was first published in 1833 in France, Germany, and England as the first piece of his "Études Op. 10".
 This study in reach and arpeggios focuses on stretching the fingers of the right hand.
 The American music critic James Huneker (1857–1921) compared the "hypnotic charm" that these "dizzy acclivities and descents exercise for eye as well as ear" to the frightening staircases in Giovanni Battista Piranesi's prints of the "Carceri d'invenzione".
 Virtuoso pianist Vladimir Horowitz, who refused to perform this étude in public, said, "For me, the most difficult one of all (the études) is the C Major, the first one, Op. 10, No. 1."
Serenade is a ballet by George Balanchine to Tschaikovsky's 1880 "Serenade for Strings in C", Op. 48.
 Students of the School of American Ballet gave the first performance on Sunday, 10 June 1934 on the Felix M. Warburg estate in White Plains, N.Y., where "Mozartiana" had been danced the previous day.
 This was the first ballet that Balanchine choreographed in America.
 It was then presented by the Producing Company of the School of American Ballet on 6 December at the Avery Memorial Theatre of the Wadsworth Atheneum with sets by the painter William Littlefield.
 Balanchine presented the ballet as his response to the generous sponsorships he received during his immigration to America.
 The official premiere took place on 1 March 1935 with the American Ballet at the Adelphi Theatre, New York, conducted by Sandor Harmati.
Roger L. Eddy (born 1958) is a former Republican member of the Illinois House of Representatives, representing the 109th district from 2003 to 2012.
 Roger Eddy retired from the Illinois House of Representatives on March 28, 2012 at the age of 53 years to run the Illinois Association of School Boards.
 He will receive a salary of at least $250,000 per year .
 His pension from the Illinois Teacher's Retirement System will double to $141,000 .
 In 2014, Eddy will start collecting a lifetime pension of $24,000 from the Illinois Legislature .
The Symphony No. 9 in C major, D. 944, known as the Great (published in 1840 as “Symphony No. 7 in C Major”, listed as No. 8 in the Neue Schubert-Ausgabe), is the final symphony completed by Franz Schubert.
 Originally called "The Great C major" to distinguish it from his Symphony No. 6, the "Little C major", the subtitle is now usually taken as a reference to the symphony's majesty.
 Unusually long for a symphony of its time, a typical performance of "The Great" takes around 55 minutes, though it can also be played in as little as 45 minutes by employing a faster tempo and not repeating sections as indicated in the score.
In music, chromatic mediants, "are altered mediant and submediant chords."
 A chromatic mediant relationship defined conservatively is a relationship between two sections and/or chords whose roots are related by a major third or minor third, and contain one common tone (thereby sharing the same quality, i.e. major or minor).
 For example, in the key of C major the diatonic mediant and submediant are E minor and A minor respectively.
 Their parallel majors are "E major" and "A major".
 The mediants of the parallel minor of C major (C minor) are "E♭ major" and "A♭ major".
 Thus, by this conservative definition, C major has four chromatic mediants: "E major", "A major", "E♭ major", and "A♭ major".
Serenade in C major, Op. 10, for string trio (usually violin, viola, cello) (1902), is an early 20th-century five-movement suite by Hungarian composer Ernő Dohnányi.
 Premiered in Vienna in 1904, year of its first publication, it was written in 1902 during a concert tour to London and Vienna.
The Octet for Strings in C major, Op. 7, is a composition by the Romanian composer George Enescu, completed in 1900.
 Together with the Octet by Niels Gade, it is regarded as amongst the most notable successors to Felix Mendelssohn's celebrated Octet, Op. 20 .
Tchaikovsky's Serenade for Strings in C major, Op. 48, was composed in 1880.
The Marxophone is a fretless zither played via a system of metal hammers.
 It features two octaves of double melody strings in the key of C major (middle C to C<nowiki>"</nowiki>), and four sets of chord strings (C major, G major, F major, and D7).
 Sounding somewhat like a mandolin, the Marxophone's timbre is also reminiscent of various types of hammered dulcimers.