John Bercow, the Rt Hon Speaker of the House of Commons from 2009 to 2019, reshaped British parliamentary tradition and practice during one of its most turbulent eras, advocating for greater backbench influence and parliamentary reform, while overseeing critical debates on Brexit and austerity. His departure in 2019 marked the end of a decade-long tenure that left an indelible mark on British political history, setting a precedent for future Speakers and reshaping the role’s significance.