Atlas of Battles

siege, early modern

Siege of Saint-Omer

Siege of Saint-Omer was a siege conducted on 24 May 1638 at Saint-Omer, in what is now France; it lasted 53 days. It was part of the Thirty Years' War, which ran from 1618 to 1648. The recorded result: Imperial-Spanish victory. Recorded strength: 20,000 against 29,000; ----10,000 infantry; 3,000 cavalry; 16,000 infantry and cavalry.

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Siege of Saint-Omer
Peter Snayers, Public domain, via Wikimedia Commons.
Fought24 May 1638lasted 53 days
WhereSaint-Omer, France50.746N, 2.262E
OutcomeImperial-Spanish victory
BelligerentsSpain; Holy Roman EmpireagainstKingdom of France
Casualties and lossesAt least 34 killed or woundedand4,000 killed or wounded; 1,220 captured
Part ofThirty Years' War1618 to 1648

Where it sits in the Thirty Years' War

Siege of Pilsen, 1618Siege of České Budějovice, 1618Battle of Lomnice, 1618Battle of Humenné, 1619Battle of Vienna, 1620Siege of Bad Kreuznach, 1620Capture of Oppenheim, 1620Capture of Bacharach, 1620Siege of Frankenthal, 1621Battle of Mingolsheim, 1622Battle of Wimpfen, 1622Battle of Höchst, 1622Siege of Heidelberg, 1622Battle of Fleurus, 1622Capture of Mannheim, 1622Battle of Stadtlohn, 1623Relief of Genoa, 1625Battle of Dessau Bridge, 1626Battle of Lutter, 1626Siege of Saint-Martin-de-Ré, 1627Skirmish near Barnim, 1627Battle of Heiligenhafen, 1627Siege of Stralsund, 1628Battle of Wolgast, 1628Battle of L'Anse-aux-Papillons, 1629Battle of St. Kitts, 1629Battle of Trzciana, 1629Siege of Wolgast (1630), 1630Battle of Falkenberg, 1630Assault on Greifenhagen, 1630Siege of Malchin, 1631Siege of Demmin, 1631Battle of Frankfurt an der Oder, 1631Battle of Werben, 1631Battle of Breitenfeld, 1631Battle of Rain, 1632Siege of Nuremberg, 1632Battle of Wiesloch, 1632Battle of Fürth, 1632Battle of the Alte Veste, 1632Battle of Lützen, 1632Siege of Schweidnitz, 1633Battle of Oldendorf, 1633Battle of Pfaffenhoffen, 1633Battle of Pfaffenhofen, 1633Siege of Rheinfelden, 1633Siege of Nymburk, 1634Battle at Liegnitz, 1634Siege of La Mota, 1634Siege of Minden, 1634Battle of Nördlingen, 1634Battle of Strasbourg Bridge, 1634Battle of Les Illes Lerins, 1635Battle of Les Avins, 1635Siege of Leuven, 1635Battle of Dömitz, 1635Battle of Haselünne, 1636Battle of Tornavento, 1636Second siege of Corbie, 1636Battle of Wittstock, 1636Battle of Les Illes Lerins, 1637Battle of Martignat, 1637Battle of Cornod, 1637Siege of Saint-Amour, 1637Siege of Lons-le-Saunier, 1637Battle of Rheinfelden, 1638Siege of Saint-Omer, 1638Battle of Palafrugell, 1638Battle of Wittenweiher, 1638Siege of Breisach, 1638Battle of Thann, 1638Battle of Vlotho, 1638Battle of Chemnitz, 1639Relief of Thionville, 1639Siege of Salses, 1639Siege of Landsberg an der Warthe, 1639Siege of Salses, 1639Battle of Salses-le-Château, 1639Battle of Sant Celoni, 1640Siege of Turin, 1640Siege of Arras, 1640Battle of Riebelsdorf Hill, 1640Battle of Martorell, 1641Battle of Preßnitz, 1641Battle of Wolfenbüttel, 1641Naval Battle of Tarragona, 1641Siege of Dorsten, 1641Battle of Schweidnitz, 1642Battle of Breitenfeld, 1642Siege of Brno, 1643Battle of Tuttlingen, 1643Action of 16 May 1644, 1644Battle of Colberger Heide, 1644Battle of Freiburg, 1644Siege of Philippsburg (1644), 1644Battle of Jüterbog, 1644Battle of Jankau, 1645Battle of Herbsthausen, 1645Siege of Brno (1645), 1645Battle of Nördlingen, 1645Siege of Korneuburg, 1646Siege of Mardyck, 1646Siege of Hohentübingen Castle, 1647Siege of Eger, 1647Siege of Lens, 1647Battle of Triebl, 1647Siege of Memmingen, 1647Blockade of Eger, 1647Battle of Prague, 1648Battle of Zusmarshausen, 1648Battle of Wevelinghoven, 1648Battle of Lens, 1648Battle of Dachau, 164816181648Siege of Saint-Omer, 1638
115 placed engagements of the Thirty Years' War in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date24 May 1638
to 16 July 1638
PlaceSaint-Omer, France
50.746N, 2.262E
KindSiege, early modern
Strength20,00029,000; ----10,000 infantry; 3,000 cavalry; 16,000 infantry and cavalry
Casualties and lossesAt least 34 killed or wounded4,000 killed or wounded; 1,220 captured
Commanders
Siege of Saint-OmerSiege of Saint-OmerBattle of Saint-OmerBattle of ArquesSiege of Aire-sur-la-LysBattle of GuinegateBattle of CasselSiege of Aire-sur-la-LysBattle of CasselAntwerpenBrightonCharleroiBruggeAmiensDieppeDoverSouthend-on-Sea100 km50.746N, 2.262E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Contested ground: this site was fought over 3 times between 1303 and 1638.

In the same war

Elsewhere in 1638

Siege of Saint-Omer is one of 1,470 engagements of the 17th century in the atlas and one of 1,383 in present-day France.

Sources

Identity, coordinates, dates and the war from Wikidata Q7510361, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Saint-Omer, revision 1370744924, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.