Leszczyński Alliances
Leszczyński Alliances is a Fortress Age Polish technology researched at the Sejm, or at the Rada for the Cossack Hetmanate. It improves Native warrior access by reducing their cost by 20% and increasing their train limit by 20; the Sejm also gains 50 population space.

Research profile
- Age
- Fortress Age
- Civilization
- Poles
- Research location
- Sejm (All) ; Rada (Cossack Hetmanate)
- Research time
- 40 seconds
- Food cost
- 1,000
- Effect
- Native warrior, 22: -20% cost, +20% train limit; Sejm: +50 population space
- Next technology
- Czartoryski Patronage (except Cossack Hetmanate and Livonia)
Effect & research conditions
The technology costs 1,000 Food and takes 40 seconds. Its unit effect applies to Native warriors, while the additional population space is attached to the Sejm. Cossack Hetmanate access uses the Rada, and the listed follow-up, Czartoryski Patronage, is unavailable to the Cossack Hetmanate and Livonia. Check the active Polish state’s options before planning the sequence.
Research condition
Available to Poles from the Fortress Age. Research it at Sejm (All) or Rada (Cossack Hetmanate).
When to research
Research when the Polish army expects to rely on Native warriors and needs a higher production limit, or when the Sejm’s extra population capacity will support a larger force. The Food cost and research time are substantial. Establish production and allied access first so the discount and higher limit can be used; otherwise immediate army production may matter more.
Separate the unit effect from the Sejm effect
Leszczyński Alliances combines two benefits. Native warriors become cheaper and their train limit rises by 20, while the Sejm receives 50 additional population space. The first effect helps recruit a larger allied contingent; the second can make room for that army and other troops. Neither removes the need to secure the settlement or gather resources to train units. Compare the investment with the planned Native roster and likely population pressure.