House Swann

House Swann of Stonehelm is a noble house that has historically held fealty to House Baratheon of Storm's End. Their lands are located in the Dornish Marches of the Stormlands. Their seat is Stonehelm and the head of the house holds the title of Lord of Stonehelm. The Swann sigil is two swans black and white, on opposite fields of white and black.

Early history
House Swann is an old noble house, regarded as proud, powerful and cautious. They have governed their lands for as long as any can remember. From Stonehelm they control the Slayne, a major river route inland to the stormlands, gaining them much wealth and power. They are probably the second most powerful and influential family in the stormlands, after the Baratheons. The Swanns and Caronsboth claim to be the oldest of the marcher lords.

During the Dance of the Dragons, Ser Byron Swann was killed by Syrax or Vhagar.

Lord Swann's fool was the one who named Matarys Targaryen "the even younger Prince". Lord Gawen Swanncompeted in the tourney at Ashford Meadow as an old man, losing to Prince Valarr Targaryen. Gawen ignored Dunk's direct request to join him in the trial of seven. Ser Eustace Osgrey boasted that in the past members of important families married Osgreys, citing the Swanns as one of the examples.

Ser Barristan Selmy squired for Ser Manfred Swann as a boy. Barristan later rescued Lady Jeyne Swann and her septa from the Kingswood Brotherhood.

In the books
In the A Song of Ice and Fire novels, they are regarded as proud, powerful and cautious. They are the second most powerful house in the stormlands, after the Baratheons. During the War of the Five Kings, even though Ser Balon Swann remains in court, and Ser Donnel Swann declares for Renly, Lord Gulian remains in his castle without raising his army.
 * Lord Gulian Swann, Lord of Stonehelm. A mature man.
 * Ser Donnel Swann, his eldest son and heir.
 * Ser Balon Swann, his second son. A skilled knight; good with lance, better with a morning-star, superb with the bow.
 * Lady {Cyrenna} of House Swann, Lord Walder Frey's second wife.
 * Lady {Corenna} of House Swann, Ser Stevron Frey's wife. Died of a wasting illness.
 * Lady Jeyne Swann. She and her septa were rescued by Barristan Selmy from the Kingswood Brotherhood.