Peter Nordbo
Peter Nordbo is a character from the Man-Kzin War series of books, mainly the stories collected in Inconstant Star. He was an astronomer and noble on Wunderland, and during the First Man-Kzin War, was pressed into service for the Kzin following their occupation of the world. At the height of the occupation, he discovered a source of bizarre radiation on a world many lightyears away, and was taken to investigate by the scientifically minded Kzin who oversaw him.
During the flight, forces under Buford Early and Ulf Reichstein Markham liberated Wunderland, and Nordbo was convicted of collaboration and stripped of all of his possessions. In order to secure his release and clear his name, his daughter Tyra secured the help of Robert Saxtorph and his ship to investigate. They found that Peter had discovered a remnant of the Tnuctipun, a black hole powered hyperdrive that could also be used as a powerful Hawking radiation beam weapon. Peter had freed himself from the Kzinti and was reunited with Tyra, and after the weapon was destroyed by the Kzin, returned to Wunderland to free his name.