Who is the first astronaut landed in planet venus?

As of yet, no astronauts have landed on Venus. It is unlikely that any human will actually land on Venus, simply because the conditions on the surface of the planet are too extreme: Venus has an average temperature of 464C, a crushing surface pressure of 92 bars, has virtually no water, and it's atmosphere is mainly composed of carbon dioxide (and no oxygen). Probes that have been sent to Venus didn't even last more than an hour on the surface of the planet, assuming that they weren't crushed by the atmosphere prior to landing.