Question: The Omni Royal Orleans is a 345-room hotel, in the French Quarter of Louisiana, which Category 4 event occurred in 1915?
Related documents: [0]  [DOC] The New Orleans Hurricane of 1915 was an intense Category 4 hurricane that made landfall near Grand Isle, Louisiana during the 1915 Atlantic hurricane season. The storm formed in late September were it moved westward and peaked in intensity of 145 mph (230 km/h) to weaken slightly by time of landfall on September 29 with recorded wind speeds of 126 mph (206 km/h) as a strong category 3 Hurricane. The hurricane killed 275 people and caused $13 million (1915 US dollars) in damage. [END] 
[1]  [DOC] The Omni Royal Orleans is a 345-room hotel on the corner of St. Louis and Royal Streets near Jackson Square in the French Quarter of New Orleans, Louisiana. It was constructed in 1960 as the Royal Orleans, on the site of the old St. Louis Hotel, which was ruined by the 1915 New Orleans hurricane. The exterior was designed by architect Samuel Wilson Jr., while the interior was designed by Arthur Davis. [END] 
Answer: 
1915 New Orleans hurricane
1915 New Orleans hurricane