The Mutiny of the Trout was an alleged peasant revolt in this kingdom sparked by a conflict over who could buy the namesake fish from a merchant. A ruler of this kingdom inherited the realm of his older brother upon that brother’s assassination, despite losing to him earlier in the same year at the Battle of Golpejera (“gol-pay-HEY-rah”). It’s not Iceland, but an 1188 council in this kingdom has been called the earliest European parliament. In a now-discredited theory, the founding of this kingdom was part of a “repopulation” of the “Desert of the (*) Duero.” This kingdom joined with its eastern neighbor as part of the 1230 Treaty of Benavente while under the rule of Ferdinand III. García I founded this kingdom after Alfonso III of Asturias divided his lands between his three sons. For 10 points, what was this medieval kingdom in northwest Spain, which for a time controlled Galicia and lay to the west of Castile? ■END■
ANSWER: Kingdom of León [or Reinu de Llión, Reino de León, or Reino de Leão; accept Castilla y León; prompt on Kingdom of Galicia until “Galicia” is read by asking “what kingdom controlled Galicia for much of this period?”]
<Alex Fregeau, European History>
= Average correct buzz position