Question: How many people died in the fire Brooklyn Theatre that was owned by Sarah Crocker Conway?

<P0-S0> The Brooklyn Theatre Fire was a catastrophic theatre fire that broke out on the evening of December 5, 1876, in the then-city of Brooklyn (now a borough of New York City). <P0-S1>  One hundred and three unidentified victims were interred in a common grave at Green-Wood Cemetery. <P0-S2>  An obelisk near the main entrance at Fifth Avenue and 25th Street marks the burial site. <P0-S3>  The conflagration killed at least 278 individuals, with some accounts reporting more than 300 dead. <P0-S4>  More than two dozen identified victims were interred individually in separate sections at the Cemetery of the Evergreens in Brooklyn. <SEP> <P1-S0>  She was a sister of Elizabeth Crocker Bowers, also an actress. <P1-S1>  She made her debut in Baltimore, Maryland in 1849, playing Parthenia and other leading parts. <P1-S2>  In May 1852, she married the actor Frederick B. Conway, and the two thenceforward acted together. <P1-S3>  In 1859, they opened Pike's Opera House in Cincinnati, Ohio with a first-class company, but the engagement was not profitable, and they returned to the east. <P1-S4>  In 1861, they visited England, and filled a short engagement at Sadler's Wells Theatre, London. <P1-S5>  After their return, they became star actors, and made an extensive and profitable tour. <P1-S6>  In 1864 Sarah leased the Park Theatre in Brooklyn, and subsequently the new Brooklyn Theatre, in which for nine years her husband played leading parts. <P1-S7>  Sarah Conway possessed a tall and graceful figure and an expressive countenance, and was a versatile actress and a popular theatre manager. <P1-S8> Sarah Crocker Conway (b. Ridgefield, Connecticut, 1834; d. Brooklyn, New York, April 28, 1875) was an actress. <SEP> <P2-S0> Frederick Conway Levy was born on May 17, 1878, in New York City, the son of the well-known British-born cornetist Jules Levy (1838–1903) and American actress Marianne “Minnie” Conway (1852–1896). <P2-S1>  Tearle also had a sister, and a half-brother, musician Jules Levy, Jr., from his father's previous marriage. <P2-S2>  Minnie's mother was stage actress Sarah Crocker Conway. <P2-S3>  Minnie Conway was a direct descendant of William Augustus Conway, a British Shakespearian actor who became popular in America during the 1820s. <P2-S4>  Her father, the proprietor of the Brooklyn Theatre, was said to have organized the first stock company in America. <P2-S5>  After Tearle’s parents separated, his mother married Osmond Tearle (1852–1901), a British Shakespearian actor popular in “the provinces”. <P2-S6>  Two half brothers, Godfrey and Malcolm Tearle, were born from Marianne's marriage to Osmond Tearle. <SEP> <P3-S0> Frederick Bartlett Conway (b. Clifton, 10 February 1819; d. Manchester, Massachusetts, 6 September 1874) was an actor. <P3-S1>  He was the son of William A. Conway. <P3-S2>  He early developed a taste for the stage. <P3-S3>  After he had won a fair position in his profession in England, he came to the United States in August 1850. <P3-S4>  Here he formed an association with Edwin Forrest, and played Iago to his "Othello", de Mauprat to his "Richelieu", and other companion parts. <P3-S5>  After the death of his first wife, Mr. Conway married, in May, 1852, Sarah Crocker, a leading actress, and the two thenceforward acted together. <P3-S6>  In 1859 they opened Pike's Opera House in Cincinnati, Ohio with a first-class company, but the engagement was not profitable, and they returned to the east. <P3-S7>  In 1861, they visited England, and filled a short engagement at Sadler's Wells Theatre, London. <P3-S8>  After their return they became star actors, and made an extensive and profitable tour. <P3-S9>  Though somewhat pompous in manner, Frederick Conway was a good actor, with a fine personal appearance and a commanding delivery. <P3-S10>  He was the father of Marianne "Minnie" Conway and Lilian Conway. <P3-S11>  His grandsons, Minnie's sons, were actors Conway Tearle and Godfrey Tearle.