Painter Andrew Wyeth, 91, died asleep in his home on Friday morning.

Wyeth followed in the footsteps of his father, the famous painter and illustrator N.C. Wyeth.

"He [Wyeth] was a man of extraordinary perception, and that perception was found in his thousands of images -- many, many of them iconic," said Jim Duff, director of the Brandywine River Museum. "He highly valued the natural world, the historical objects of this world as they exist in the present and strong-willed people."

Wyeth is known for works such as "Christina's World," a 1948 painting depicting a disabled woman looking at a grassy rise.

The artist was survived by his wife and two sons.

Read more hot stories Moms Are Talking About.