Soviet cosmonaut who was the second human to orbit the Earth and the fourth person in space.
He was General-Colonel in the Soviet Air Force.
He had many other firsts: first person to orbit Earth multiple times, first to spend more than a day in space, first to sleep in space, and first to experience space sickness.
He married and had two children.
He was preceded in space by cosmonaut Yuri Gagarin, the first person to orbit Earth.