According to a 2003 piece in The New York Times, Hepburn had a "progressive yet treatable neurological disorder called essential tremor." Her ailment, which used to be called palsy, was inherited.
Katharine Bushnell died in 1946.
Katharine Scherman died in 2009.
Katharine Coman died in 1915.
Katharine Budd died in 1951.
Bodil Katharine Biørn died in 1960.
Katharine Page died in 2003.
Katharine Carl died in 1938.
Katharine Budd died in 1951.
Katharine of Habsburg died in 1280.
Katharine Coman died in 1915.
Katharine Parker died in 1971.
Katharine Brettargh died in 1601.
Katharine Way died in 1995.
Katharine Bushnell died in 1946.
Katharine Glasier died in 1950.
Katharine Goodson died in 1958.
Katharine Scherman died in 2009.