Later there were sales to Henry Clay Frick and to Andrew Mellon and his son Paul.

ECONOMIST: Dealing in Old Masters

True, Henry Clay Frick was a fellow giant of industry recently dubbed one of America's leading financiers by the New York Times and he and Andrew Carnegie had been partners once.

NPR: Excerpt: 'Meet You In Hell'

The words might have touched a chord in almost any other man, but Henry Clay Frick, still the ranking board member of U.S. Steel, showed no sign of gratitude or relief.

NPR: Excerpt: 'Meet You In Hell'

Their paintings were the most expensive school of art ever when the great American collectors such as Pierpont Morgan, Henry Clay Frick, Henry Huntington and Andrew Mellon sent their value to the skies.

ECONOMIST: British pictures are too snobbish for American collectors

He drew heavily from railroad and insurance interests, and in the last days before the election he reportedly made a personal appeal for funds to Henry Clay Frick, the steel baron, and other industrialists.

NEWYORKER: Money Unlimited

Harriman, Henry Clay Frick and Alfred Vanderbilt.

FORBES: From Gilded To Gelded

One chapter that begins with a description of Duveen's relationship with Henry Clay Frick, who in his old age became one of Duveen's most important clients, directly follows another that ends with an account of the sinking of the Lusitania in the spring of 1915.

ECONOMIST: Flogging culture to Americans: The art of the deal | The

Countless attempts were also made on the lives of bigger names, such as King Alfonso XII of Spain (1878), Kaiser Wilhelm I of Germany (May and June 1878), Andrew Carnegie's business partner, Henry Clay Frick (Pittsburgh, 1892), a Serbian minister (Paris, 1893) and King Alfonso XIII and his English bride (Madrid, on their wedding day, 1906).

ECONOMIST: The anarchists