Dornish Marches

"For thousands of years, the Storm Kings fought the Gardener Kings of the Reach and various families of Dorne for control of the Dornish Marches, just below the Red Mountains."

- Brienne of Tarth

The Dornish Marches are an area of the southwestern Stormlands bordering Dorne, the Reach, and the Sea of Dorne. They are located below the Red Mountains. Despite their name, they are ruled from Storm's End ever since the Storm Kings of House Durrendon asserted their dominance over it against the Gardener Kings or the Reach and several Dornish houses.

The fight for control over the Marches lasted until Dorne was brought under the rule of the Iron Throne through a marriage alliance.