Mercy’s story began with Catherine McAuley and two companions; today, it’s carried out by hundreds of thousands of people in hospitals, schools and community programs across the globe.

Sept. 24, 2026, marks 199 years since Sisters of Mercy Founder Catherine McAuley opened the House of Mercy in Dublin, Ireland. Its doors have remained open since 1827 to serve the poor, sick and uneducated.

Catherine had been given a vision to build a large, three-story house where the poorest of the city would find mercy - and it had taken years of costly planning and construction to make it a reality. But with the house now complete, the work of caring for vulnerable women and children could truly begin.

Today, we continue Catherine’s legacy of caring and compassion, not only within Mercy’s hospitals and clinics, but also within our communities where the need remains great.

Mercy CEO Steve Macking Reflects on Mercy Day

As Mercy enters its 200th year, Mercy President and CEO Steve Mackin reflected on the ministry's beginnings in Dublin and the enduring mission that continues to guide caregivers today. What started in "the house Catherine McAuley built" grew into a global ministry rooted in serving those most in need. Looking back on that legacy, Mackin reminded caregivers that "the goal of this infirmary wasn't just comfort. It was healing." That same commitment remains at the heart of Mercy's work today.

"This extraordinary legacy, built on the bedrock of God's mercy, has been entrusted to each of us," he said.

Learn More About Mercy's Heritage