NEW : Wyeth says Wyeth 's work `` captured Pennsylvania '' Wyeth died in his sleep at home in America at one . ( CNN ) -- His most famous painting is that of a young girl in a field . His `` Helga '' portraits were first shown in Friday .
NEW : Wyeth says Wyeth 's work `` captured Pennsylvania '' Wyeth died in his sleep at home in America at one . His most famous painting is that of a young girl in a field . His `` Helga '' portraits were first shown in Friday .