Mary Yi In-dŏk
St. Mary Yi In-dŏk was a courageous martyr who lived her faith with unwavering dedication. Her story inspires families to be strong in their beliefs.
- Feast day
- Sep 20
- Known as
- Martyr
- Era
- 19th-century Korea

Who they were
Mary Yi In-dŏk was born in the late 18th century in Korea, during a time when the Catholic faith was facing significant persecution. She came from a family that embraced Christianity, and her upbringing instilled in her a deep commitment to her faith. As a devout Christian, she sought to live out the teachings of Jesus Christ in her daily life and community.
In the early 19th century, Korea saw a wave of anti-Christian sentiment, leading to the brutal persecution of Christians. Despite the dangers, Mary remained steadfast in her beliefs. She often assisted in hiding and supporting catechumens and priests, risking her own life for the sake of her faith and fellow Christians. Her acts of kindness and bravery were a testament to her strong spirit and deep love for God.
In 1839, during a particularly ferocious crackdown on Christians known as the Bitter Martyrdom, Mary was arrested, along with many others. She faced intense interrogation and was subjected to cruel torture designed to force her to renounce her faith. Throughout this ordeal, she exhibited remarkable courage. Even when threatened with death, she refused to betray her beliefs or the names of her fellow Christians.
Her resilience and unwavering faith ultimately led to her martyrdom. She was executed on September 20, 1839, displaying an extraordinary strength that inspired many around her. After her death, she was honored as a martyr, and stories of her courage and faithfulness spread throughout the Christian community in Korea and beyond.
Mary Yi In-dŏk was canonized by Pope John Paul II in 1984, along with 102 other martyrs of Korea, recognizing her commitment to the faith and her ultimate sacrifice for love of Christ. Her legacy continues to inspire Christians today, reminding them of the strength found in steadfastness and the importance of standing firm in one’s beliefs, even in the face of adversity.
Today, St. Mary Yi In-dŏk is celebrated as a symbol of bravery and faithfulness. Her life story serves as an encouragement to families to nurture their faith and support each other in their spiritual journeys.
Remembered for
St. Mary Yi In-dŏk is remembered for her steadfast faith in the midst of persecution. As a martyr, she exemplified courage and fidelity to her Christian beliefs, inspiring many to remain true to their convictions even under threat. Her life reminds families of the importance of resilience in faith and the power of prayer during difficult times.
Sep 20
How to recognize them

- Martyr's palmRepresents her martyrdom and victory over suffering.
- RosaryA symbol of her deep prayer life and reliance on God's grace.
- CrucifixSignifies her commitment to Christ amid persecution.
- CandleRepresents the light of faith in dark times.
- White lilySymbolizes purity and holiness associated with her life.
Pray with this saint
Holy Mary Yi In-dŏk, strengthen our faith and guide our family in love and courage. Help us to embrace the challenges we face with the same resolve you showed in your life. Intercede for us that we may live out our beliefs boldly and compassionately.
For your household
Incorporating the life of St. Mary Yi In-dŏk into your family's spiritual practice can provide a powerful example of courage and commitment. Start by sharing her story, focusing on her unwavering faith during persecution, and discuss how such dedication can inspire families today. Encourage your children to think about their own beliefs and how they can live them out courageously, even when faced with challenges.
You might also consider celebrating her feast day on September 20. Establish a simple tradition, such as lighting a candle at dinner to honor her memory, or saying a special prayer dedicated to her. Families can create a repository of prayers and intentions inspired by her life, emphasizing the importance of faith-filled actions in daily activities. Make it a habit to ask for her intercession when facing tough situations, reinforcing the lesson of trusting in God when life gets difficult.
Discussing the themes of sacrifice and faith with your children can help deepen their understanding of what it means to be a disciple. Encourage them to write letters to St. Mary, asking for her guidance in their own struggles. This can make her memory a comforting presence in your family life, encouraging everyone to aspire to live their faith fully, even in adversity.
Pray as a household
Carry your family in prayer
Solua gives your family a simple, faithful rhythm of prayer — one unhurried moment at a time, for the people you carry by name.
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