Katherine Ann Summers was Scott and Alex Summers' mother. When her husband, Chris, flew the family back from a vacation in his vintage private plane, a de Havilland Mosquito, the plane was attacked and set ablaze by a scout ship from the alien Shi'ar Empire. Katherine pushed Scott and Alex out the plane door with the only available parachute.^[2]

The two were separated, but Chris managed to escape and looked for Katherine while slaughtering any guards in his way. Chris found that Katherine had forcibly been made part of Emperor D'ken's 'harem' and was in the middle of being sexually assaulted by D'ken. Wanting Chris to suffer for actions against his authority, D'ken killed Katherine in front of a helpless Christopher.^[2][3] Unknown to Katherine or her husband, at the time, she was pregnant. Emperor D'ken ripped the baby from her in front of Chris and, unknown to Chris, incubated and matured the infant into adulthood and sold it into slavery.^[4] The child later grew to kill D'ken and become Emperor of the Shi'ar Empire.^[5]

• She has only been shown in flashbacks.

• "Katherine Anne" is also the first and middle name of X-Man Kitty Pryde.