Yes she is. In 1970, the Roman Catholic Church declared two women saints to be Doctors of the Church: Catherine of Siena (1347-1380) and Teresa of Avila (1515-1582). Both were of a mystical bent, and their writings are available on the web today.
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Yes, St. Catherine of Siena is often referred to as "Doctor of the Church" due to her theological writings and teachings.
St. Catherine of Siena
Both Teresa of Avila and Catherine of Siena were declared Doctors of the Church in 1970.
Both Teresa of Avila and Catherine of Siena were declared Doctors of the Church in 1970.
There are three female doctors of the Church: St. Catherine of Siena, St. Teresa of Avila and St. Therese of Lisieux.
St. Catherine of Siena Roman Catholic Church was created in 1929.
There are several female Doctors of the Church:St. Teresa of AvilaSt. Catherine of SienaSt. Therese of LisieuxSt. Hidegard of Bingen
No, Catherine changed no doctrines of the Catholic Church.
Just for your information: There is no such thing as the Roman Catholic Church. That is a term developed by the Protestant Church of England meant to denigrate the Catholic Church. There is just the Catholic Church and all those other non-Catholic religions.
Saint Catherine of Siena was born and raised in Siena, a city in Tuscany, Italy. She lived there for most of her life and became known for her spiritual teachings and influence on the Catholic Church.
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Catherine of siena's impact was that she helped the push towards the Reformation. If it wasn't for her the Church would still have supreme power. Also, no one would be able to speak out against the church.