US: By focusing the most powerful X-ray beam in the western hemisphere on six of Ludwig van Beethoven's hairs and a few pieces of his skull, scientists have gathered what they say is conclusive evidence that the famous composer died of lead poisoning.
The work, done at the US energy department's Argonne National Laboratory outside Chicago, confirms earlier hints that lead may have caused decades of poor health for the composer, culminating in a long and painful death in 1827 at the age of 56.
"There's no doubt in my mind . . . he was a victim of lead poisoning," said Bill Walsh, an expert in forensic analysis and chief scientist at Pfeiffer Treatment Centre in Warrenville, Illinois, who led the study with energy department researcher Ken Kemner.
Still a mystery, however, is the source of Beethoven's lead exposure, which evidence now suggests occurred over many years. Among the possibilities are his liberal indulgence in wine consumed from lead cups, or perhaps a lifetime of medical treatments, which in the 19th century were often laced with heavy metals.
One metal that was clearly absent was mercury, Walsh said - a detail that weakens the hypothesis floated by some that Beethoven had syphilis, which in those days was commonly treated with mercury.
Many of the atoms in Beethoven's body were lead atoms, it turns out. The hair samples clocked in at 60 parts in a million, or about 100 times higher than normal.
The samples were from an authenticated lock of Beethoven's hair purchased by a collector from Sotheby's several years ago.