# Siege of Pilsen

The siege of Pilsen (or Plzeň) or Battle of Pilsen was a siege of the fortified city of Pilsen (Czech: Plzeň) in Bohemia carried out by the forces of the Bohemian Protestants led by Ernst von Mansfeld. It was the first major battle of the Thirty Years' War. The Protestant victory and subsequent capture of the city enlarged the Bohemian Revolt.

## Eve of the battle

vteThirty Years' War :
Bohemian Revolt (1618–1620)
Pilsen
Lomnice
Sablat
Wisternitz
Bautzen
White Mountain
Neu Titschein
Palatinate campaign (1620–1623)
Bad Kreuznach
Oppenheim
Bacharach
Jülich
Mingolsheim
Wimpfen
Höchst
Bergen op Zoom
Heidelberg
Fleurus
Mannheim
Frankenthal
Stadtlohn
Transylvanian invasions of Hungary (1619–1621, 1623–1624, 1626)
Humenné
Érsekújvár
Tyrnau [de]
Hodonín
Vlach uprisings
Danish intervention (1625–1629)
Breda
Dessau Bridge
Oldenzaal
Lutter am Barenberge
Groenlo
Stralsund
Wolgast
's-Hertogenbosch
Swedish intervention (1630–1635)
Swedish landing
Frankfurt
Magdeburg
Werben
1st Breitenfeld
Bamberg
Rain
Maastricht
Nuremberg
Wiesloch
Alte Veste
Fürth
Lützen
Oldendorf
Pfaffenhofen
Steinau
Konstanz
1st Breisach
1st Rheinfelden
Liegnitz [de]
1st Nördlingen
Strasbourg Bridge
Swedish-French Period (1635–1648)
Les Avins
Leuven
Schenkenschans
Ray-sur-Saône
Dömitz [de]
Haselünne [de]
Raon
Tornavento
2nd Magdeburg
Somme
Wittstock
2nd Breda
Venlo
Leipzig
Hanau
2nd Rheinfelden
Saint Omer
Fuenterrabía
Kallo
Wittenweiher
Thann [de]
Vlotho
2nd Breisach
1st Freiberg
Chemnitz
Melnik
Thionville
Salses
Cambrils
Montjuïc
Preßnitz
Plauen
La Marfée
Dorsten
Wolfenbüttel
Kempen
Honnecourt
Schweidnitz
2nd Breitenfeld
2nd Freiberg
Rocroi
1st Brno
Tuttlingen
Kolding
Freiburg
Philippsburg
Jüterbog
Bysjön
Jankau
2nd Brno
Mergentheim
2nd Nördlingen
3rd Hulst
Korneuburg [de]
Totenhöhe [de]
Hohentübingen [de]
Mardyck
Dunkirk
Triebl
Naples
Zusmarshausen
Wevelinghoven
Lens
Dachau [de]
Prague
Naval battles
Gibraltar
Genoa
The Slaak
1st Saint Martin
Lizard Point
Dunkirk
Channel
The Downs
Cape St. Vincent
2nd Saint Martin
Lister Dyb
Colberger Heide
Fehmarn :
$_{Treaties}$ :
On 23 May 1618 the Protestant nobles overthrew the rule of King Ferdinand II and threw the Roman Catholic governors of Bohemia from their office at Prague Castle in the Defenestration of Prague. The new government formed of Protestant nobility and gentry gave Ernst von Mansfeld the command over all of its forces. Meanwhile, Catholic nobles and priests started fleeing the country. Some of the monasteries as well as unfortified manors were evacuated and the Catholic refugees headed for the city of Pilsen, where they thought that a successful defence could be organised. The city was well-prepared for a lengthy siege, but the defences were undermanned and the defenders lacked enough gunpowder for their artillery. Mansfeld decided to capture the city before the Catholics were able to gain support from the outside.

## Siege

On 19 September 1618 Mansfeld's army reached the outskirts of the city. The defenders blocked two city gates and the third one was reinforced with additional guards. The Protestant army was too weak to start an all-out assault on the castle, so Mansfeld decided to take the city by hunger. On 2 October the Protestant artillery arrived, but the calibre and number of the cannons was small and the bombardment of the city walls brought little effect. The siege continued, with the Protestants receiving new supplies and recruits on a daily basis, while the defenders lacked food and munitions. Also, the main city well was destroyed and the stores of potable water soon depleted.
Finally, on 21 November, cracks were made in the walls and the Protestant soldiers poured into the city. After several hours of close hand-to-hand combat, all of the town was in Mansfeld's hands.

## Aftermath

After capturing the city, Mansfeld demanded 120,000 golden guldens as war reparations and an additional 47,000 florins for sparing the city and not burning it to the ground. [Between the previous and next sentence, two years passed.] However, soon the Holy Roman Empire, led by Bavaria, gathered enough forces and crossed the border with Bohemia, heading towards Pilsen and Prague.
The newly elected Bohemian king, Frederick V of the Palatinate was aware of the huge superiority of his enemies' forces and ordered his own army to regroup and attack each of the advancing armies separately. However, he was abandoned by most of his allies and his armies dispersed in the dense forests between Pilsen and Prague, which resulted in a decisive defeat in the Battle of White Mountain.