Question: Baruch Leib Rosowsky, was a famous cantor of the Great Choral Synagogue in Riga and a composer of religious music in Riga, at the time a city in Imperial Russia, it is likely that Rosowsky's family is related to the Rasofsky branch of which person who was an American professional boxer, and became a world champion in three weight divisions and was a decorated veteran of World War II?
Context: Ricky Burns (born 13 April 1983) is a British professional boxer from Scotland.  He is one of only three British boxers to have won world titles in three weight divisions and the first from Scotland, having held the WBO super-featherweight title from 2010 to 2011; the WBO lightweight title from 2012 to 2014; and the WBA super-lightweight title from 2016 to 2017.  At regional level he held the Commonwealth super-featherweight title from 2008 to 2009, and has challenged for the British and European super-featherweight titles. Eddie Connolly (November 18, 1876 – January 1, 1936) was a Canadian born boxer who took the World Welterweight Championship in a twenty-five round points decision on June 5, 1900 against reigning champion Matty Matthews at the Seaside Athletic Club in Brooklyn, New York.  Earlier in his career, he took both the Canadian Featherweight Title, and the British Empire World Lightweight Title.  He was exceptional to have fought for titles in three weight divisions, and to have fought in both lightweight and welterweight divisions for World Championships.  His primary and best known manager was Billy Roche, who also managed champion "Mysterious" Billy Smith.  He was also managed by Abe Pollack and by Eddie Kelly during his fights in England. Thomas "Tommy" Hearns (born October 18, 1958) is an American former professional boxer who competed from 1977 to 2006.  Nicknamed the "Motor City Cobra", and more famously "The Hitman", Hearns' tall and slender build allowed him to move up over fifty pounds in his career and become the first boxer in history to win world titles in four weight divisions: welterweight, light middleweight, middleweight, and light heavyweight.  By later winning a super middleweight title, he also became the first to win world titles in five weight divisions. Hugo Chaim Adler (17 January 1894, Antwerp – 24 December 1955, Worcester, Massachusetts) was a Belgian composer, cantor, and choir conductor.  Born in Antwerp to Jewish parents, Adler studied at the Hochschule für Musik Köln from 1912-1915.  In 1915 he was drafted into the German Army during the First World War; serving for three years in the infantry until he was wounded at Argonne.  In 1918 he was appointed cantor and teacher at St. Wendel in the Saarland.  He left there in September 1921 to become second cantor at the synagogue in Mannheim, rising to head cantor there in 1933.  While in Mannheim he studied music composition at the Mannheim Conservatory with Ernst Toch from 1924-1926.  In 1939 he fled Germany for the United States after having been imprisoned due to his Jewish ancestry by the Nazi regime.  From September 1939 until his death of cancer in December 1955 he was cantor of Temple Emanuel in Worcester, Massachusetts.  He remained active as a choir conductor and composer of sacred music during these years.  Several of his works were published by Sacred Music Press and Transcontinental Music Publishers in New York City.  He is the father of composer and conductor Samuel Adler. Solomon Rosowsky (1878, Riga –1962) was a cantor (hazzan) and composer, and son of the Rigan cantor, Baruch Leib Rosowsky. Temple Emanu-El of New York was the first Reform Jewish congregation in New York City and, because of its size and prominence, has served as a flagship congregation in the Reform branch of Judaism since its founding in 1845.  Its landmark Romanesque Revival building on Fifth Avenue is one of the largest synagogues in the world.  In size, it rivals many of the largest European synagogues such as Grand Choral Synagogue of St. Petersburg, Moscow Choral Synagogue, and the Budapest Great Synagogue.  Emanu-El means "God is with us" in Hebrew. Barney Ross (born Dov-Ber "Beryl" David Rosofsky; December 23, 1909 – January 17, 1967) was an American professional boxer.  Ross became a world champion in three weight divisions and was a decorated veteran of World War II. Ray Charles Leonard (born May 17, 1956), best known as "Sugar" Ray Leonard, is an American former professional boxer, motivational speaker, and occasional actor.  Often regarded as one of the greatest boxers of all time, he competed from 1977 to 1997, winning world titles in five weight divisions; the lineal championship in three weight divisions; as well as the undisputed welterweight title.  Leonard was part of "The Fabulous Four", a group of boxers who all fought each other throughout the 1980s, consisting of himself, Roberto Durán, Thomas Hearns and Marvin Hagler. Linda Rich is a hazzan (also called cantor) who, while only in her teens, became the first female cantor to daven (chant) in a Conservative synagogue (specifically Temple Beth Zion in Los Angeles), although she was not ordained until 1996 when she finally received her ordination of "Hazzan Minister" from the "Jewish Theological Seminary" in New York.  That same year she became a member of the "Cantors Assembly of America".  The 1984 Olympics were held in Los Angeles, and Rich was chosen as their official cantor; she also sang at the "1984 World Chassidic Festival" in Haifa, Jerusalem, and Tel Aviv.  An album entitled "World Chassidic Festival" was later released, containing among other songs her recording of "Barcheynu Avinu."  In January 2008, Cantor Linda received a Commendation from the "City of Los Angeles" for her "extraordinary talent and accomplishments".  Rich is a fifth-generation cantor from an Orthodox Jewish family.  Her father was well-known Cantor Israel Reich (Z'L) of New York and Los Angeles, and both of her brothers, Barry and Brian, are cantors as well in the Bay Area.  Together, the 4 cantors concertized throughout the country during the 80's and 90's and eventually recorded their own album entitled "The Reich Family, Cantors Four".  Linda's daughter, Rachel Reich Freed, plans on one day becoming the sixth generation of cantors in the "Reich Family", as they are known.  After the passing of her grandfather in March 1999, Rachel was included in the family concerts as the fourth cantor.  The concerts were renamed "The Reich Family, Cantors Three plus One".  Linda is married to Philip Freed of London, England.  She majored in Theatre Arts and Music at San Francisco State University, and received scholarships to study acting at the American Conservatory Theatre (ACT), musical theatre at the Dorothy Chandler Pavilion, and is also an accomplished classical pianist.  In addition to her membership in the Cantors Assembly of America (CA), Linda is also a member of the Screen Actors Guild (SAG) and appeared in minor television roles prior to becoming a full-time cantor. Baruch Leib Rosowsky (Latvian: "Baruhs Leibs Rozovskis" , 1841  – 1919) was a famous cantor of the Great Choral Synagogue in Riga and a composer of religious music in Riga, at the time a city in Imperial Russia.  Rosowsky's time of death was during the Latvian War of Independence.  His son was also a famous cantor, named Solomon Rosowsky.  It is likely that Rosowsky's family is related to the Rasofsky branch of the Barney Ross family.
Answer: Barney Ross