Jingo Linx
Jingo Linx was a Sontaran Commander in the Fifth Sontaran Battle Group. He was battling against a Rutan squadron near the Sol system when he was forced to abandon his battle ship and take his scout ship to Earth for repairs in the 13th century. Linx allied himself with Irongron, who offered him shelter in exchange for advanced weaponry. Linx abducted scientists from the late 20th century to help him repair his ship. He went with Irongron to watch the atack upon Edward of Wessex for his own amusement. He died when Hal the Archer shot an arrow in his probic vent, and his ship exploded soon afterwards. (DW: The Time Warrior).
Other information
Linx was mentioned briefly by Sarah Jane Smith. After meeting Styre, another member of the cloned Sontaran race, she briefly thought he was the same person, she should have realised this was unlikely as she had seen Linx's ship blow up. (DW: The Sontaran Experiment)