Background
He was born in Podbuż, in east Galicia, which was part of the Austrian Empire. His father, Michał, was a teacher, and his mother, Joanna, took care of the children.
He was born in Podbuż, in east Galicia, which was part of the Austrian Empire. His father, Michał, was a teacher, and his mother, Joanna, took care of the children.
Starting in 1843, the family lived in Sambor, where Cyril graduated from elementary school and middle school and completed high school.
He was recognized as a servant of God. He came from the Polish aristocratic Sielecki family. He then joined the General Seminary in Lwów and thus began to study theology at Lviv University.
After three years of residence in Lwów he then continued at the seminary in Przemyśl.
One died shortly after a serious illness, and the younger one grew up in the care of the Basilian sisters in JaworóWest On 8 January 1860, he was ordained to the priesthood under the ministry of the bishop of Przemyśl, Grzegorz Jachimowicz.
Foreign 14 years, he worked at the parish and lived very modestly. He was vicar and administrator for the communities of Stara Sól, Bilicz, Milków, Lubaczów and JaworóWest
In 1874, he became pastor of the villages Żużel and CeblóWest
In both parishes, he devoted his life to the improvement of the social conditions. He was also in contact with blessed Josaphata Hordashevska. As pastor, he began his activities with the renewal of religious life entrusted to his parishioners.
He completed the construction of the church in Żużel, and improved on the church in CeblóWest
His activities were recognized by Bishop Konstantyn de Czechowicz during a canonical visitation of the parish in Żużel and Ceblów in 1905. He was actively involved in the campaign against the scourge of alcoholism in the countryside, a concern of both the Roman and Greek Catholic churches.
In cooperation with the local intelligence he organized sobriety help groups. He also tried to raise the local level of education.
To improve the financial situation of the parish, he founded a society whose members committed themselves to helping widows, orphans and forgotten people in the parish.
He also founded what is considered one of the first orphanages in Galicia. In his social activities he also worked closely with the local Polish nobility. He was particularly strongly associated with Count Stanisław Antoni Potocki, whom he met as a priest in MilkóWest
Potocki had a farm in Oleszyce and together with Sielecki tried to eliminate illiteracy and alcoholism in the region.
In 1892, he co-founded the religious congregations of the Sisters Servants of Mary Immaculate, as well as later on the Sisters of Saint Joseph to promote good deeds. The last 10 years of his life were devoted to the new congregation of the Sisters of Saint Joseph.
Foreign distinguished services he was made a knight of the Austrian Order of Franz Joseph in 1910. He died, age 82, at Żużel and was officially declared a servant of God.
In honour of his various religious and social activities, he was awarded the title of Papal chamberlain, which was one of the highest honours that could be bestowed on a Catholic layman by the Pope, and was often given to members of noble families.