Fundación de Leintz-Gatzaga por Alfonso XI Historical milestone · Leintz-Gatzaga, Debagoiena / Alto Deba, Gipuzkoa Image of Leintz-Gatzaga, not of the place itself. King Alfonso XI founded the town in 1331 around its salt springs, which gave the settlement its origin and name (Gatzaga, 'saltworks'). 1331 Photo: kurtsik (CC BY-SA 3.0) What to see and do in Leintz-Gatzaga