Semyon Rozenfeld first escaped death in the gas chambers by inventing a trade for himself when he arrived at Sobibor, a Nazi death camp in occupied Poland, in the fall of 1943. Questioned by a German officer, he said he was a glazier and was taken aside for work detail.

About a month later he was among about 600 prisoners who staged a historic uprising against their captors and tried to escape. Only about 300 made it to the fences, and most of the rest were recaptured in the surrounding countryside. But some managed to make it to freedom, Mr. Rozenfeld among them.

He died at 96 on Monday at a hospital in Rehovot, Israel, near Tel Aviv, and was believed to be the last known survivor of Sobibor. The Jewish Agency for Israel confirmed his death.

He was cited as the last survivor after the death of Selma Wynberg Engel last December in East Haven, Conn., also at 96. She had been one of the first to tell the world of the camp’s existence.