Some context: Michael Grant Ignatieff,  (; born May 12, 1947) is a Canadian author, academic and former politician. He was the leader of the Liberal Party of Canada and Leader of the Official Opposition from 2008 until 2011. Known for his work as a historian, Ignatieff has held senior academic posts at the universities of Cambridge, Oxford, Harvard and Toronto. While living in the United Kingdom from 1978 to 2000, Ignatieff became well known as a television and radio broadcaster and as an editorial columnist for The Observer.
Ignatieff was born on May 12, 1947 in Toronto, the elder son of Russian-born Canadian Rhodes Scholar and diplomat George Ignatieff, and his Canadian-born wife, Jessie Alison (nee Grant). Ignatieff's family moved abroad regularly in his early childhood as his father rose in the diplomatic ranks. George Ignatieff was a diplomat and chief of staff to the prime minister under Lester Bowles Pearson. He also worked for Pearson's leadership campaigns.  At the age of 11, Ignatieff was sent back to Toronto to attend Upper Canada College as a boarder in 1959. At UCC, Ignatieff was elected a school prefect as Head of Wedd's House, was the captain of the varsity soccer team, and served as editor-in-chief of the school's yearbook. As well, Ignatieff volunteered for the Liberal Party during the 1965 federal election by canvassing the York South riding. He resumed his work for the Liberal Party in 1968, as a national youth organizer and party delegate for the Pierre Elliott Trudeau party leadership campaign.  After high school, Ignatieff studied history at the University of Toronto's Trinity College (B.A., 1969). There, he met fellow student Bob Rae, from University College, who was a debating opponent and fourth-year roommate. After completing his undergraduate degree, Ignatieff took up his studies at the University of Oxford, where he studied under, and was influenced by, the famous liberal philosopher Sir Isaiah Berlin, whom he would later write about. While an undergraduate at the University of Toronto, he was a part-time reporter for The Globe and Mail in 1964-65. In 1976, Ignatieff completed his PhD in History at Harvard University. He was granted a Cambridge M.A. by incorporation in 1978 on taking up a fellowship at King's College there.
Did he have any siblings?
A: 

Some context: Dreamgirls is a 2006 American romantic musical drama film written and directed by Bill Condon and jointly produced and released by DreamWorks Pictures and Paramount Pictures. Adapted from the 1981 Broadway musical of the same name by composer Henry Krieger and lyricist/librettist Tom Eyen, Dreamgirls is a film a clef, a work of fiction taking strong inspiration from the history of the Motown record label and one of its acts, The Supremes. The story follows the history and evolution of American R&B music during the 1960s and 1970s through the eyes of a Detroit, Michigan girl group known as the Dreams and their manipulative record executive. The film adaptation of Dreamgirls stars Jamie Foxx, Beyonce, Eddie Murphy, and Jennifer Hudson, and also features Danny Glover, Anika Noni Rose and Keith Robinson.
Dreamgirls musical supervisors Randy Spendlove and Matt Sullivan hired R&B production team The Underdogs -- Harvey Mason, Jr. and Damon Thomas -- to restructure and rearrange the Henry Krieger/Tom Eyen Dreamgirls score so that it better reflected its proper time period, yet also reflected then-modern R&B/pop sensibilities. During post-production, composer Stephen Trask was contracted to provide additional score material for the film. Several musical numbers from the Broadway score were not included in the film version, in particular Lorrell's solo "Ain't No Party".  Four new songs were added for the film: "Love You I Do", "Patience", "Perfect World," and "Listen."  All of the new songs feature music composed by original Dreamgirls stage composer Henry Krieger. With Tom Eyen having died in 1991, various lyricists were brought in by Krieger to co-author the new songs. "Love You I Do," with lyrics by Siedah Garrett, is performed in the film by Effie during a rehearsal at the Rainbow Records studio. Willie Reale wrote the lyrics for "Patience," a song performed in the film by Jimmy, Lorrell, C.C., and a gospel choir, as the characters attempt to record a message song for Jimmy. "Perfect World," also featuring lyrics by Garrett, is performed during the Rainbow 10th anniversary special sequence by Jackson 5 doppelgangers The Campbell Connection. "Listen", with additional music by Scott Cutler and Beyonce Knowles, and lyrics by Anne Preven, is presented as a defining moment for Deena's character late in the film.  After preview screenings during the summer of 2006, several minutes worth of musical footage were deleted from the film due to negative audience reactions to the amount of music. Among this footage was one whole musical number, C.C. and Effie's sung reunion "Effie, Sing My Song", which was replaced with an alternative spoken version.  The Dreamgirls: Music from the Motion Picture soundtrack album was released on December 5 by Music World Entertainment/Columbia Records, in both a single-disc version containing highlights and a double-disc "Deluxe Version" containing all of the film's songs. The single-disc version of the soundtrack peaked at number-one on the Billboard 200 during a slow sales week in early January 2007. "Listen" was the first official single from the soundtrack, supported by a music video featuring Beyonce. "And I Am Telling You I'm Not Going" was the Dreamgirls soundtrack's second single. Though a music video with all-original footage was once planned, the video eventually released for "And I Am Telling You" comprised the entire corresponding scene in the actual film.
did anyone else partake in the music?
A:
music composed by original Dreamgirls stage composer Henry Krieger. With Tom Eyen having died in 1991, various lyricists were brought in by Krieger