The Protestant Reformation in Switzerland was promoted initially by Huldrych Zwingli, who gained the support of the magistrate (Mark Reust) and population of Zürich in the 1520s.
 It led to significant changes in civil life and state matters in Zürich and spread to several other cantons of the Old Swiss Confederacy.
 Seven cantons remained Roman Catholic, though, which led to inter-cantonal wars known as the Wars of Kappel.
 After the victory of the Catholic cantons in 1531, they proceeded to institute counter-reformatory policies in some regions.
 The schism and distrust between Catholic and Protestant cantons would define their interior politics and paralyse any common foreign policy until well into the 18th century.
Before World War I, the Reformed Christian Church in Serbia (Szerbiai Református Keresztén Egyház in Hungarian) was part of the Reformed Church in Hungary.
 In the period of the Reformation, Rev Sztáray planted 120 Reformed congregations in the region.
 In the period of the Ottoman Empire regions of Hungary were part of the Empire and some villages were destroyed.
 After the Turks were defeated, Hungarian Reformed people came from Debrecen, Szentes.
 In 1898 a whole Catholic village converted to the Reformed faith, because the Catholic church refused to celebrate the mass in Hungarian language.
 After World War I this part of Hungary was connected to Serbia.
 In 1933 the Reformed Church in Yugoslavia was founded.
 At that time among Hungarians, there were German Reformed comgregations, the Germans arrived in this region in the 18th century.
 After World War II the Germans were forced to leave the country.
 There are Czech- speaking and a remnant of German speaking congregations.
 The church suffered in the Communist regime.
 A number of congregations separated when Croatia become independent to form the Reformed Christian Church in Croatia.
A Continental Reformed church is a Reformed church that has its origin in the European continent.
 Prominent subgroups are the Dutch Reformed, the Swiss Reformed, the French Reformed (Huguenots), the Hungarian Reformed, and the Waldensian Church in Italy.
The Evangelical Reformed Church in Angola is a Reformed denomination in the country of Angola established by the missionaries of the Swiss Reformed church.
The Reformed Church of East Africa was founded in 1944 when the Dutch Reformed Church in South Africa started mission work in Eldoret Kenya.
 This work was overtaken by the missionaries came from the Netherlands Reformed Church.
 The church accepted the Three Forms of Unity.
 When the Dutch missionaries left, they left behind a Kenyan Reformed church.
 At the time it has more than 600 congregations and 110,000 members.
 The denomination has a theological seminary in Eldoret.
 The church become autonomous in 1963.
 There are more than 110,000 adherents.
 The Christian Reformed Church in Eastern Africa separated in 1992.
 It is a member of the World Communion of Reformed Churches.
 It has official relationship with the Christian Reformed Church in North America.
The Királyhágómellék Reformed Church District (Hungarian: "Királyhágómelléki Református Egyházkerület" ; Romanian: "Episcopia Reformată de pe lângă Piatra Craiului" ) is one of the two districts of the Reformed Church in Romania, with its headquarters in Oradea.
 It was part of the Tiszántúl Reformed Church District of the Reformed Church in Hungary from the 16th century until 1920, when it came under Romanian administration in accordance with the Treaty of Trianon and became part of the newly founded Reformed Church in Romania.
 In 2004 it had 320,000 members in 271 congregations and 342 house fellowships.
 The Apostles Creed, the Heidelberg Catechism and the Second Helvetic Confession are the official standards.
The City Church of Biel (German: "Stadtkirche Biel" ) is a Swiss Reformed church in Biel/Bienne, Switzerland.
 Built in the Gothic style, its construction started around 1451 and was mostly complete in 1470.
 The church is considered one of the most significant late-Gothic churches in Switzerland and is a Swiss Cultural Property of National Significance.
The Christian Reformed Church in Myanmar is a Reformed church of Myanmar, and was founded in 1985 by Pastor Chan Thleng who was former ordained in the Presbyterian Church in Myanmar.
 He belongs to the Matu tribe in Southern Chin State born in 1954 become Christian in 1974.
 In 1985 he founded the United Christian Church after he graduated from Calvin Theological Seminary in Grand Rapids, MI he returned to Burma and changed the denominations name to the Christian Reformed Church.
 It has 52 congregations and 13 preaching points with more than 6,000 members.
 The church is divided into 10 Classes.
 Most of the evangelists work among Buddhist and Animist people.
 The church is divided into classes.
 The Church recognizes the Belgic Confession, Heidelberg Catechism, Canons of Dort and the Ecumenical Creeds.
 To train pastors the church founded the Reformed Theological seminary in Yangon in 1997.
 The college offers a degree of Bachelor of Theology.
 The Christian Reformed Church maintains a clinic opened in 1999 in Matupi.
 It belonged to the Reformed Ecumenical Council, the only Burmese denomination to do so.
 But REC merged with the World Alliance of Reformed Churches, now the Christian Reformed Church is affiliated with the World Communion of Reformed Churches.
 The denomination held its 26th General assembly in March 17-20 2011.
 It entered into official ecclesiastical fellowship with the Christian Reformed Church in North America in 2011.
The Church of the Holy Ghost (German: "Heiliggeistkirche" ) is a Swiss Reformed Church in Bern, Switzerland.
 The Swiss heritage site of national significance building is located at Spitalgasse 44 in the Old City of Bern.
 It is one of largest Swiss Reformed churches in Switzerland.
The Swiss Reformed Church (German: "Evangelisch-reformierte Kirchen der Schweiz" , "Evangelical Reformed Churches of Switzerland") refers to the Reformed branch of Protestantism in Switzerland started in Zürich by Huldrych Zwingli and spread within a few years to Basel (Johannes Oecolampadius), Bern (Berchtold Haller and Niklaus Manuel), St. Gallen (Joachim Vadian), to cities in southern Germany and via Alsace (Martin Bucer) to France.

Question: Who started the Swiss Reformed Church and initially promoted the Reformation in Switzerland?
Answer: Huldrych Zwingli