Dorna is a daughter of House Swyft of Cornfield. She married Ser Kevan Lannister, younger brother of Lord Tywin Lannister. Her husband's niece, Cersei Lannister, insisted that her husband, King Robert Baratheon, make Dorna and Kevan's son, Lancel, his squire.
King Robert informs Lancel that his mother was a whore with a fat arse, to Lancel's discomfort and distress. Robert was angry with Lancel and presumably not offering a reliable appraisal of Dorna Lannister's character and appearance.
In the booksEdit
In the A Song of Ice and Fire novels, Dorna is the daughter of Ser Harys Swyft, the Knight of Cornfield and a loyal bannerman of House Lannister. Her father married her to Kevan Lannister and they have three sons: Lancel and the twins Martyn and Willem. They also have a daughter, Janei. Lancel is their eldest child and Janei the youngest.
According to Kevan, Dorna is a gentle soul, never comfortable except at home with friends and kin around her. She prays seven times a day and loves needlework and flowers.
Dorna is described "chinless lady, flat-chested and chicken-legged" with her lack of chin shared by her father, yet she is still very loved by her husband.
It is unclear from Robert's comment about Dorna "dumb whore with a fat arse" whether her physical description was changed in the series (as done with many characters) or he called her that way just to insult Lancel.
|Lord:||Ser Harys Swyft||Heir:|
|Title(s):||Knight of Cornfield|
|Current members:||Dorna Swyft|
|Lord:||Lord Tywin Lannister||Heir:||Tyrion Lannister (disputed)|
|Seat:||Casterly Rock||Lands:||The Westerlands|
|Title(s):||Lord Paramount of the Westerlands · Lord of Casterly Rock · Warden of the West · King of the Rock (pre-War of Conquest)|
|Ancestors:||Lann the Clever · Loren Lannister|
|Current members:||Kevan Lannister · Cersei Lannister · Jaime Lannister · Dorna Lannister · Lancel Lannister · Cynda Lannister · Sansa Stark|
|Deceased members:||Tytos Lannister · Joanna Lannister · Stafford Lannister · Alton Lannister · Martyn Lannister · Willem Lannister|
|Household:||Podrick Payne · Bronn · Gregor Clegane · Amory Lorch · Polliver · Rorge · Biter|
|Overlord:||House Baratheon of King's Landing|