Saint-Omer , Calvados Saint-Omer is a commune of the Calvados département , in the Basse-Normandie région , in France . Its postal code is 14220 . The INSEE code is 14635 . Population : 157 Area : 8.07 km² Altitude : 306 m Canton : Thury-Harcourt Some facts about St.Omer 1 ) St.Omer was founded by monks , the town was named after one monk called Omer . 2 ) Le Blockhaus d'Eperlecques was the original bunker for manufacture of V2 rockets . 3 ) Saint-Omer became part of France in 1677 4 ) The 1605 `` Gunpowder Plot '' to blow up the English houses of Parliament was discussed here . 5 ) The city grew around a monastery founded in the 7th century .  This Basse-Normandie geographical article is a stub . You can help Wikipedia by expanding it . Categories : Communes of Calvados | Basse-Normandie geography stubs In other languages : Français | Italiano | Nederlands | Polski | Português 