Between 1403 and 1422 some of these lands were already annexed by forces from the canton of Uri, but subsequently lost. Uri conquered the Leventina Valley in 1440. In a second conquest Uri, Schwyz and Nidwalden gained the town of Bellinzona and the Riviera in 1500. Some of the land and Bellinzona itself were previously annexed by Uri in 1419 but lost again in 1422. The third conquest was fought by troops from the entire Confederation (at that time constituted by 12 cantons). In 1512 Locarno, the Maggia Valley, Lugano and Mendrisio were annexed. Subsequently, the upper valley of the river Ticino, from the St. Gotthard to the town of Biasca (Leventina Valley) was part of Uri. The remaining territory (Baliaggi Ultramontani, Ennetbergische Vogteien, the Bailiwicks Beyond the Mountains) was administered by the Twelve Cantons. These districts were governed by bailiffs holding office for two years and purchasing it from the members of the League.
Between 1403 and 1422 some of these lands were already annexed by forces from the canton of Uri but subsequently lost Uri conquered the Leventina Valley in 1440 In a second conquest Uri Schwyz and Nidwalden gained the town of Bellinzona and the Riviera in 1500 Some of the land and Bellinzona itself were previously annexed by Uri in 1419 but lost again in 1422 The third conquest was fought by troops from the entire Confederation (at that time constituted by 12 cantons) In 1512 Locarno the Maggia Valley Lugano and Mendrisio were annexed Subsequently the upper valley of the river Ticino from the St Gotthard to the town of Biasca (Leventina Valley) was part of Uri The remaining territory (Baliaggi Ultramontani Ennetbergische Vogteien the Bailiwicks Beyond the Mountains) was administered by the Twelve Cantons These districts were governed by bailiffs holding office for two years and purchasing it from the members of the League