In the Icelandic Saga af Tristram ok Ísodd, the ruler of Jakobsland in Spain.
He had an inflated idea of his own prowess. Seven wicked brothers drove him from his land, but his famous namesake, who was king of Spain, helped him to reclaim it, though he received a mortal wound in the process.
Tristan the Stranger appears as Tristan the Dwarf in other versions of the legend.
See also
Tristan | The Legend of King Arthur
See also
Saga af Tristram ok Isodd | 14th century