|Title||Prince of Koj|
|Book||The World of Ice & Fire (mentioned)|
Malthar Xaq was a prince from the Summer Isles and the ruler of Koj. After the first contact with people from beyond the seas, the princes of the Summer Isles began the construction of large, strong ships that could cross long stretches of ocean and resist the fiercest storms. Prince Malthar was the greatest of these shipbuilders and is remembered as Malthar the Windrider and Malthar the Mapmaker.
- The World of Ice & Fire, The Summer Isles.