Otto de Grandson

Othon de Grandson
Sheriff of Tipperary
Lord of the Channel Islands
Lieutenant of the Duchy of Gascony
Justiciar of North Wales
Baron Grandison
Otto I de Grandson, detail from his effigy in Lausanne Cathedral
Bornc. 1238
Lausanne, Savoy
Died1328
Aigle, Savoy
BuriedLausanne Cathedral
NationalityCounty of Savoy
Wars and battlesLord Edward's crusade
First Welsh war 1276
Second Welsh war 1282
Siege of Acre (1291)
Gascon campaign (1294–1303)
ParentsPierre de Grandson
Agnès de Neuchâtel

Otto de Grandson (c.1238–1328), sometimes numbered Otto I to distinguish him from later members of his family with the same name, was the most prominent of the Savoyard knights in the service of King Edward I of England, to whom he was the closest personal friend and many of whose interests he shared.