Kompania Zamkowa was the military

Military

A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

 infantry

Infantry

Infantrymen are soldiers who are specifically trained for the role of fighting on foot to engage the enemy face to face and have historically borne the brunt of the casualties of combat in wars. As the oldest branch of combat arms, they are the backbone of armies...

 unit with a size of company

Company (military unit)

A company is a military unit, typically consisting of 80–225 soldiers and usually commanded by a Captain, Major or Commandant. Most companies are formed of three to five platoons although the exact number may vary by country, unit type, and structure...

, responsible for providing a protection of the President of the Republic of Poland

President of the Republic of Poland

The President of the Republic of Poland is the Polish head of state. His or her rights and obligations are determined in the Constitution of Poland....

 from 1926 to 1939. They also performed ceremonial work.

Castle Company, named after Royal Castle, Warsaw

Royal Castle, Warsaw

The Royal Castle in Warsaw is a castle residency and was the official residence of the Polish monarchs. It is located in the Castle Square, at the entrance to the Warsaw Old Town. The personal offices of the king and the administrative offices of the Royal Court of Poland were located there from...

, then a presidential residence, consisted:

• Commanding squad
  Squad
  In military terminology, a squad is a small military unit led by a non-commissioned officer that is subordinate to an infantry platoon. In countries following the British Army tradition this organization is referred to as a section...
  
  
• Three infantry platoon
  Platoon
  A platoon is a military unit typically composed of two to four sections or squads and containing 16 to 50 soldiers. Platoons are organized into a company, which typically consists of three, four or five platoons. A platoon is typically the smallest military unit led by a commissioned officer—the...
  
  s
• Heavy machine gun
  Machine gun
  A machine gun is a fully automatic mounted or portable firearm, usually designed to fire rounds in quick succession from an ammunition belt or large-capacity magazine, typically at a rate of several hundred rounds per minute....
  
   platoon
• Gendarmerie
  Gendarmerie
  A gendarmerie or gendarmery is a military force charged with police duties among civilian populations. Members of such a force are typically called "gendarmes". The Shorter Oxford English Dictionary describes a gendarme as "a soldier who is employed on police duties" and a "gendarmery, -erie" as...
  
   platoon

The Company was created after dinbaning Presidential military office and his previous protective squad. The only President under its protection was Ignacy Mościcki

Ignacy Moscicki

Ignacy Mościcki was a Polish chemist, politician, and President of Poland . He was the longest-serving President of Poland .-Life:...

.

In 1928 Company was merged with a castle motorcade, gendarmerie platoon and horse unit to Castle Unit.

Commanders:

• Major Stanisław Kłopotowski
• Captain Witold Grębo
• Captain Zygmunt Roszkowski
• Major Wiktor Gębalski