question: Which Battle was the first to interrupt the seeming invincibility of the Old Swiss Confederacy in 1515 ?
answer: Battle of Marignano
turker_answer: The first battle to interrupt the seeming invincibility of the Old Swiss Confederacy in 1515 was the Battle of Marignano .
rule-based: The first to interrupt the seeming invincibility of the Old Swiss Confederacy in 1515 was battle of Marignano .