Yes, Quicksilver dies in "Avengers: Age of Ultron." He sacrifices himself to save Hawkeye and a child during the climactic battle against Ultron. His death is a poignant moment that underscores the stakes of the conflict and the personal sacrifices made by the Avengers.
Ron Silver died on March 15, 2009 at the age of 62.
Sven Quick died in 1949.
Henry Quick died in 1857.
Arnold Quick died in 1990.
Richard Quick died in 2009.
John Herbert Quick died in 1925.
Maurice Quick died in 2001, in England, UK.
Hal Quick died on 1974-03-09.
Robert Hebert Quick died in 1891.
Winnifred Quick died on 2002-07-04.
Oliver Chase Quick died in 1944.
Smiley Quick died on 1979-12-23.