Please answer the following question: Information:  - The Swiss Mennonite Conference (also Konferenz der Mennoniten der Schweiz or Conférence Mennonite Suisse) is an Anabaptist Christian body in Switzerland.  - Conrad Grebel ( c. 1498 -- 1526 ) , son of a prominent Swiss merchant and councilman , was a co-founder of the Swiss Brethren movement . In 1961 a Mennonite University College was named after him in Waterloo , Ontario .  - Friesland (official) or Frisia is a province in the northwest of the Netherlands. It is situated west of Groningen, northwest of Drenthe and Overijssel, north of Flevoland, northeast of North Holland, and south of the North Sea. In 2010, the province had a population of 646,000 and a total area of .  - The Swiss Brethren are a branch of Anabaptism that started in Zürich, spread to nearby cities and towns, and then was exported to neighboring countries. Today's Swiss Mennonite Conference can be traced to the Swiss Brethren.  - In the Christian gospels, the ministry of Jesus begins with his baptism in the countryside of Roman Judea and Transjordan, near the river Jordan, and ends in Jerusalem, following the Last Supper with his disciples. The Gospel of Luke states that Jesus was "about 30 years of age" at the start of his ministry. A chronology of Jesus typically has the date of the start of his ministry estimated at around AD 2729 and the end in the range AD 3036. Jesus' "Early Galilean ministry" begins when after his Baptism, he goes back to Galilee from his time in the Judean desert. In this early period he preaches around Galilee and recruits his first disciples who begin to travel with him and eventually form the core of the early Church as it is believed that the Apostles dispersed from Jerusalem to found the Apostolic Sees. The "Major Galilean ministry" which begins in Matthew 8 includes the commissioning of the Twelve Apostles, and covers most of the ministry of Jesus in Galilee. The "Final Galilean ministry" begins after the death of John the Baptist as Jesus prepares to go to Jerusalem.  - The Mennonites are Christian groups belonging to the church communities of Anabaptist denominations named after Menno Simons (14961561) of Friesland (which today is a province of the Netherlands). Through his writings, Simons articulated and formalized the teachings of earlier Swiss founders. The early teachings of the Mennonites were founded on the belief in both the mission and ministry of Jesus, which the original Anabaptist followers held to with great conviction despite persecution by the various Roman Catholic and Protestant states. Rather than fight, the majority of these followers survived by fleeing to neighboring states where ruling families were tolerant of their radical belief in believer's baptism. Over the years, Mennonites have become known as one of the historic peace churches because of their commitment to pacifism.    What entity does 'conrad grebel' has the relation 'country of citizenship' with?
Answer:
switzerland