LOS ANGELES/PARIS (REUTERS, AFP) - Two French luxury goods billionaires have pledged €300 million (S$459 million) towards the rebuilding of Notre Dame Cathedral in Paris, joining a growing list of people pledging to help finance the reconstruction of the global icon.

Francois-Henri Pinault, the CEO of the Kering group, which owns Gucci and Yves Saint Laurent fashion houses, pledged €100 million. Businessman Bernard Arnault’s family and his LVMH luxury goods group up the stakes by doubling that pledge.

In a statement, Pinault said the money towards “the effort necessary to completely rebuild Notre Dame” would be paid by the Pinault family’s investment firm Artemis.

A statement issued on behalf of Arnault, said: “The Arnault family and the LVMH group would like to show their solidarity at this time of national tragedy, and are joining up to help rebuild this extraordinary cathedral, which is a symbol of France, of its heritage and of French unity."

French President Emmanuel Macron said an international campaign would be launched to raise funds for the rebuilding of the cathedral.

The fire at the Notre Dame Cathedral in Paris on Monday (April 15) also prompted fund-raising appeals in the United States, as people horrified by the blaze began making commitments to restore a global landmark even before the flames were extinguished.

The New York-based French Heritage Society and the Go Fund Me crowdsourcing platform were among the first to offer help for a cathedral that is a must-see destination for visitors to Paris from all over the world.

The French Heritage Society, an American non-profit group dedicated to preserving French architectural and cultural treasures, launched a web page on Monday to raise money for the cathedral's restoration.

"Notre Dame is obviously an architectural marvel and most certainly a monument that should be restored," Jennifer Herlein, the executive director of the society, said by phone.

Herlein could not immediately say how much her organisation had raised for Notre Dame on Monday. Eventually, the funds raised will go directly to the cathedral, she said.

The organisation, which was founded in 1982, gave two grants last year totalling more than US$430,000 (S$582,000 ) for restoration projects at France's national library, she said.

50 CAMPAIGNS

At the website GoFundMe, more than 50 campaigns related to the cathedral fire had been launched globally on Monday, John Coventry, a spokesman for Go Fund Me, said by email.

"In the coming hours we'll be working with the authorities to find the best way of making sure funds get to the place where they will do the most good," Coventry said.

Some of the Go Fund Me campaigns had not listed any money raised by late Monday, and several joke campaigns were created through Go Fund Me to help Quasimodo, the fictional character in Victor Hugo's 19th century novel The Hunchback of Notre Dame.

"I think the challenge will be whether or not people who give the money agree with those who are doing the rebuilding about how the cathedral should be rebuilt," said Lisa Bitel, a professor of religion and history at the University of Southern California.

"This is a national monument in France and they will not spare money to rebuild," Bitel said. "I don't think the Americans will get much of a say in how to do it." Notre Dame Cathedral has looked to international donors for past renovation efforts.

In 2017, Michel Picaud, president of Friends of Notre Dame De Paris, told the New York Times his group planned to organise gala dinners, concerts and other events to raise funds in France and the United States for restoration work at the cathedral.