Rubuta ci gaba ga wannan sakin layi - Bayan Sweden ta amince da kayen farko a cikin yakin Nördlingen (1634)
, Ferdinand II, Sarkin sarakuna na Roma da kuma wasu jihohin Protestant sun kammala Zaman Lafiya na Prague a watan Mayu 1635. Calvinist Brandenburg ya yi jinkirin sa hannu, tunda ban da sanarwar soke Dokar Maidowa, ba a ambaci haƙurin Calvin ba. Don samun Brandenburg don sanya hannu, Sweden da Ferdinand sun yi alkawarin maye gurbin ta a cikin Duchy na Pomerania a musayar.