For the primate of Poland and Grand Chancellor of the Crown, seeJan Łaski (1456–1531).
Jan Łaski (John à Lasco), portrait from the 16th century
Jan Łaski orJohannes à Lasco (1499 – 8 January 1560) was aPolishCalvinist reformer. Owing to his influential work in England (1548–1553) during theEnglish Reformation, he is known to the English-speaking world by the Anglicised formJohn à Lasco (or less commonly,John Laski).[1]
Jan Łaski was born in 1499 as the second son of Jarosław Łaski, thevoivode ofSieradz, and Zuzanna ofBąkowa Góra.[2][3] Following Hermann Dalton's claims in his nineteenth-century biography of Łaski,[4] a number of historians have identified the Łaski family's castle inŁask as his place of birth,[5] although recent Polish scholarship concludes that the exact location cannot be ascertained.[6]
Edward VI Granting Permission to John à Lasco to Set Up a Congregation for European Protestants in London in 1550, painting byJohann Valentin Haidt, circa 1750
His contributions to the Calvinist churches were the establishment of church government in theory and practice, a denial of any distinction between ministers and elders except in terms of who could teach and administer the sacraments. A meeting with the AnabaptistMenno Simons in 1544 led Łaski to coin the term "Mennonites" for the followers of Simons.[12][13]
Forma ac ratio (1550) -- A "Form and Rationale" for the liturgy of theStranger churches in London. Possibly influenced the 1552Book of Common Prayer,John Knox's Scottish order, theMiddleburg ordinal, the 1563 German Palatinate order, and the "forms and prayers" in Pieter Dathenus' psalter, which was influential in Dutch Calvinist churches.
Johannes a Lasco,Opera (Works), ed.Abraham Kuyper (Amsterdam: F. Muller, 1866).
Henning P. Juergens,Johannes a Lasco in Ostfriesland: Der Werdegang eines europaeischen Reformators (Tuebingen: Mohr Siebeck, 2002) (Spaetmittelalter und Reformation, Neue Reihe, 18), . viii + 428 S.
Becker, J.,Gemeindeordnung und Kirchenzucht. Johannes a Lascos Kirchenordnung für London (1555) und die reformierte Konfessionsbildung (Leiden, Brill, 2007) (Studies in Medieval and Reformation Traditions, 122), xvi, 592 S.
Michael S. Springer,Restoring Christ's Church: John a Lasco and the Forma ac ratio (Aldershot, Ashgate, 2007) (St Andrews Studies in Reformation History), 198 pp.
