Maria Izabela Wiłucka-Kowalska

Maria Izabela Wiłucka‑Kowalska
Archpriestess
Church	Catholic Mariavite Church
Installed	1940
Term ended	1946
Predecessor	Jan Maria Michał Kowalski
Successor	Maria Rafael Wojciechowski ()
Other posts	President of the Council of Major Superiors
Orders
Ordination	28 March 1929
Consecration	28 March 1929
Personal details
Birth name	Antonina Wiłucka
Born	(1890-10-28)October 28, 1890 Warsaw, Vistula Land, Russian Empire
Died	November 28, 1946(1946-11-28) (aged 56) Felicjanów, Płock County, Polish People's Republic
Buried	Felicjanów
Denomination	Mariavite Christian
Parents	Adam Wiłucki Maria Antonina née Horn
Spouse	Jan Maria Michał Kowalski
Children	none
Sainthood
Feast day	3 September, 28 November
Venerated in	Catholic Mariavite Church
Canonized	1946 Felicjanów by popular acclaim
Shrines	Felicjanów, Płock County, Poland

Antonina Maria Izabela Wiłucka-Kowalska (née Wiłucka, 28 October 1890 – 28 November 1946) was a Polish religious leader, who served as the first archpriestess of the Catholic Mariavite Church. Wiłucka-Kowalska was the first woman to receive the sacrament of holy orders in Poland and consecration as a bishop.

Wiłucka was a member of the Polish landed gentry. She was the daughter of Adam Wiłucki and Maria Antonina née Horn. She attended the Russian gymnasium in Warsaw for several years, and then enrolled in Marta Łojkówna's pedagogical institute for women in Warsaw. She graduated in 1909.

The following year, she tutored children of a Polish landed gentry family in Polesie, Orda, at their estate in Perekale (), Minsk Governorate for four years. One of the Orda proposed marriage. She became familiar with the English, French, German, and Russian languages, and she was musically talented.

After the outbreak of the World War I and the death of the estate owner, with his family Ordów, she was deported to Crimea, where, after three years, in 1918, she returned to the Second Polish Republic, to his family in Warsaw.

In the same year, while she was with a family in Płock, she encountered Mariavitism and Feliksa Kozłowska, its founder. Soon afterward, despite her family's objections, she joined the Mariavite Sisters.

In 1920, she took the religious name of Maria Izabela. Wiłucka was Kozłowska's suggested successor as Superior General of the Mariavite Sisters, which Wiłucka became after she professed perpetual vows on 8 September 1922.

In the same year, after the introduction of clerical marriage into the Old Catholic Mariavite Church, she married the charismatic leader of the church,Archbishop Jan Maria Michał Kowalski on 3 October 1922, in one of the first secret mystical marriages – between a priest and a nun.