Mary's regency was threatened, however, by the growing influence of the Scottish
Protestants. To an extent she had tolerated the growing number of Protestant preachers. She needed to win support for her pro-French policies, and they could expect no alternative support from England at a time when
Mary Tudor ruled. The
marriage of Mary Stuart, Queen of Scots, to the
dauphin of France on 24 April 1558 was quickly followed by
Mary Tudor's death and the succession to the throne of England by
Elizabeth on 17 November 1558. Mary Stuart's claim and rights of succession to the English throne depended in part on the Papal view of Elizabeth's legitimacy. If
Henry II of France was to pursue Mary's claim with the Pope, as part of an ambitious plan that Scotland and England would succumb to French domination, he needed Scotland to be a secure Catholic country. Some modern historians such as Pamela E. Ritchie believe that the change to Guise's policy was not dramatic, but both Catholic and Protestant would perceive and react to the tense political situation. As the Scottish Reformation crisis was developing, Henry II died on 10 July 1559, and Mary Stuart became Queen Consort of France. In France, Mary and Francis II began to publicly display the arms of England in their
blazon. This too was a motivation for English intervention in Scottish affairs. , showing Scotland impaled with Lorraine In 1557, a group of Scottish lords who became known as the "
Lords of the Congregation" drew up a covenant to "maintain, set forth, and establish the most blessed Word of God and his Congregation". This was followed by outbreaks of
iconoclasm in 1558/59. At the same time, plans were being drawn up for a Reformed programme of parish worship and preaching, as local communities sought out Protestant ministers. In 1558, the Regent summoned the Protestant preachers to answer for their teaching, but backed down when
lairds from the west country threatened to revolt. The accession of the Protestant
Elizabeth I in England in 1558 stirred the hopes and fears of Scottish Protestants. Elizabeth came to secretly support the Lords of the Congregation. In January 1559, the anonymous ''Beggars' Summons'' threatened
friars with eviction in favour of beggars. This was calculated to appeal to the passions of the populace of towns who appeared to have particular complaints against friars. Fearing disorder and now determined by circumstance to show less tolerance, the Regent summoned the reformed preachers to appear before her at Stirling on 10 May. Insurrection followed. The men of
Angus assembled in
Dundee to accompany the preachers to Stirling, and on 4 May they were joined by
John Knox, who had recently arrived from France. Stirred by Knox's sermons in
Perth and Dundee, the mob sacked religious houses (including the tomb of
James I in Perth). In response, the Regent marched on Perth, but was forced to withdraw and negotiate when another reformed contingent arrived from the west at
Cupar Muir. Among the Regent's ambassadors were the
Earl of Argyll and
Lord James Stewart, Earl of Moray, both professed Protestants. When the Regent stationed French mercenaries in Perth, both abandoned her and joined the Lords of the Congregation at St Andrews, where they were also joined by John Knox. Even Edinburgh soon fell to them in July, as Mary retreated to
Dunbar. The Congregation Lords made a truce with Guise and signed the
Articles of Leith at
Leith Links on 25 July 1559 which promised religious tolerance, then withdrew to Stirling. In September, the previous regent, the 2nd Earl of Arran, with the safe return of
his son, accepted the leadership of the Lords of the Congregation and established a provisional government. However, Mary of Guise was reinforced by professional French troops. Some of these troops established themselves at
Kinghorn in Fife, and after they destroyed
Hallyards Castle, the house of
William Kirkcaldy of Grange, Mary (according to Knox) declared, "Where is now John Knox's God? My God is now stronger than his, yea, even in Fife." In November, the rebels were driven back to Stirling. Fighting continued in Fife. Mary of Guise, troubled by illness, contemplated resigning the Regency, and returning to France.
René II de Lorraine, Marquis d'Elbeuf was appointed to rule as a French "viceroy" in her stead. His mission was abandoned, but more French troops arrived in Scotland. All seemed lost for the Protestant side until an English fleet arrived in the
Firth of Forth in January 1560, which caused the French to retreat to
Leith, the port of Edinburgh which Mary of Guise had re-fortified. The Lords of the Congregation began negotiations with England. John Knox was excluded, as his published tract
The First Blast of the Trumpet Against the Monstrous Regiment of Women, although it aimed at
Mary I of England, rendered him unacceptable to the
newly crowned Elizabeth I. The
Treaty of Berwick, signed in February, agreed that England would act jointly with the Protestant Lords to expel the French. Elizabeth I, sent an English land army into Scotland to join their Scottish allies in
besieging the French at Leith. ==Death==