Notre-Dame Cathedral this morning. : The catastrophic fire at Notre-Dame Cathedral in Paris yesterday badly damaged the 850-year-old building, but some of France’s richest moguls are stepping up to pay for repairs. Around 500 firefighters battled the blaze for nearly five hours, Adam Nossiter and Aurelian Breeden of the NYT write. By 11 p.m. Paris time, the structure had been “saved and preserved as a whole,” the city’s fire chief, Jean-Claude Gallet, said. But two-thirds of the roof was destroyed and the main spire collapsed.