58-Year Religious Ban & Persecution of Lutheran Ancestors (1714-1772)

Patriarch Daniel Buller was born in Zempelburg, West Prussia (now Sępólno Krajeńskie, Poland) in 1726. Parish records indicate he was Lutheran. At the time, the majority of the German population in Zempelburg belonged to the Zempelburg Lutheran Church, one of the major Lutheran parishes existing from the late 1600s. Tragically, around 1714, when Daniel was about 12 years old, by official decree, the Polish government banned the Lutheran religion, which had a long history. This led to the closure and destruction of the Zempelburg Lutheran Church, along with its vital parish records of baptisms, births, marriages and deaths. The absence of Lutheran vital records prior to 1726 in Zempelburg is the direct result of religious suppression and the physical destruction of the Lutheran church by the Polish government during a period of Counter-Reformation tensions. Consequently, no records exist of Daniel Buller's parents/family ancestors.

Only one possible clue was found in Daniel's marriage record of November 9, 1752 which survived in Zempelburg parish books. At age 26, he married Marianna Meller (Mariannam Mellerowna in Old Polish grammar). The witnesses to their wedding were Peter Meller and Christian Bullert. Peter Meller is very likely the father of bride Marianna Meller. Christian Bullert is very likely Daniel's father, who would have lived during the "forbidden" period during which the Lutheran religion was banned. Daniel's father would have belonged to the Zempelburg Lutheran Church. Research has yet to uncover any further evidence of Daniel's ancestors or of any siblings.

Church Destruction and Banishment (c. 1714–1726): When the Polish government enforced local Counter-Reformation restrictions around 1714, the Lutheran religion was banned in Zempelburg. The local Lutheran church was destroyed, forcing many families to either convert superficially, practice their faith in secret, or have their children baptized in the local Roman Catholic church. Though Zempelburg (modern-day Sępólno Krajeńskie, Poland) had been an early, prominent stronghold for Protestantism in the late 1600s, it was still politically a part of the historic Polish Kingdom at the time. Around 1714, the Polish local government enforced local Counter-Reformation restrictions, banning the Lutheran religion in Zempelburg. Ministers were expelled and the Lutheran church building was physically destroyed. Any records kept before this banishment were either destroyed during the demolition or lost during the upheaval.

When the government banned the Lutheran religion in 1714, historians note that the local Protestant congregation dispersed to seek sacraments elsewhere, with some Lutherans temporarily setting up a prayer house in nearby Zbosse/Grünlinde. Others held secret religious services. Protestant nobles and citizens were stripped of their political rights and banned from holding public office or judicial seats, solidifying the illegality of their religious organization until Prussia took control of West Prussia in 1772.

Prior to 1772, Lutheran residents living in and around Zempelburg would have had to travel to neighboring Lutheran parishes in Pomerania or Brandenburg where Protestantism was legally protected. Some Lutheran/Protestant couples chose to have their marriages recorded in the local Zempelburg Catholic Church records (which began keeping registers in 1751) to ensure legal validity. Some recorded vital records in the registers in Pempersin, Grunau or Preußisch Friedland (located in Kreis Schlochau).

The major Lutheran parish in Zempelburg had an older timber/brick structure destroyed around 1714 during a period of anti-Protestant restrictions under Polish rule, before being rebuilt under Prussian administration. Historical records show that, following the First Partition of Poland and the incorporation of the region into the Kingdom of Prussia, the independent Lutheran parish of Zempelburg (Evangelische Kirchengemeinde Zempelburg) was officially re-established, and a new evangelical church was built in 1772/1773. The historic Evangelical-Lutheran Church in Zempelburg (now Sępólno Krajeńskie, Kuyavian-Pomeranian Voivodeship, Poland) which belonged to the Kreis Flatow region of West Prussia, was again destroyed during the final stages of World War II in 1945. Local records and regional historical accounts note that the former Evangelical church building was severely impacted or damaged around the end of the war. As Soviet forces advanced through West Prussia and Pomerania in early 1945, the town and its historic German-majority infrastructure suffered severe combat damage, resulting in the ruin and loss of the Lutheran church building.

In the immediate postwar turmoil of 1945, the empty/abandoned former church building was also the site of tragic local violence tied to the postwar communist security apparatus. The physical remains of the 19th-century Lutheran church were subsequently cleared/demolished in the second half of the 20th century, and archaeological excavations in recent years (2021) uncovered the buried foundations of the church beneath the square.

Following the Potsdam Agreement in 1945, the region was transferred to Polish administration, the German Lutheran population was expelled or fled, and the town's administrative and religious landscape shifted to predominantly Roman Catholic.