---
title: "St. Louise de Marillac: Feast Day March 15 · Bless"
url: https://blessbible.app/saints/st-louise-de-marillac/
description: "St. Louise de Marillac, Religious, patron of social workers. Remembered on March 15, died 1660. Read their life in Bless."
---

Religious · Remembered on March 15

# St. Louise de Marillac

St. Louise de Marillac is remembered on March 15 in Bless’s calendar of saints. Traditionally invoked as patron of social workers.

|  |  |
|---|---|
| Remembered on | [March 15](https://blessbible.app/saints/march/#15) |
| Title | Religious |
| Died | 1660 |
| Patron of | [social workers](https://blessbible.app/patron-saints/#social-workers) |
| Next on Bless’s Today screen | [Monday, March 15, 2027](https://blessbible.app/saints/st-louise-de-marillac/#calendar) |

## Life

An orphaned noblewoman, widowed mother, and scrupulous soul whom Vincent de Paul steadied and set to work. Together they founded the Daughters of Charity — nuns whose cloister, their rule said, is the streets, whose chapel the parish church. She formed hundreds of them and traveled France inspecting hospitals until her body gave out.

## Patron of

Tradition invokes St. Louise de Marillac as patron of social workers.

[Social workers](https://blessbible.app/patron-saints/#social-workers)

Patronages are traditional, not an official list. [All patron saints in Bless, A to Z](https://blessbible.app/patron-saints/).

## In the calendar

The upcoming dates, through December 31, 2028, when Bless’s Today screen shows St. Louise de Marillac. Where the US calendar keeps another celebration that day, it is named instead and no rank is given.

| Date | In the US calendar | Color | Mass readings (US) |
|---|---|---|---|
| [Monday, March 15, 2027](https://blessbible.app/calendar/2027/03/15/) | Monday of the Fifth Week of Lent | Violet | Daniel 13:1-9, 15-17, 19-30, 33-62 or 13:41c-62 · Psalm 23:1-3a, 3b-4, 5, 6 · Ezekiel 33:11 · John 8:1-11 |
| [Wednesday, March 15, 2028](https://blessbible.app/calendar/2028/03/15/) | Wednesday of the Second Week of Lent | Violet | Jeremiah 18:18-20 · Psalm 31:5-6, 14, 15-16 · John 8:12 · Matthew 20:17-28 |

Readings

Reading citations through May 31, 2027 are as published in the USCCB liturgical calendar. Later citations were computed by Bless from the US Lectionary cycle — confirm with your parish.

[March 14 St. Matilda](https://blessbible.app/saints/st-matilda/) [March 16 St. Heribert of Cologne](https://blessbible.app/saints/st-heribert-of-cologne/)

[All the saints of March](https://blessbible.app/saints/march/) [Born on March 15?](https://blessbible.app/saints/birthday/#03-15) [A saint for every day](https://blessbible.app/saints/)

Spotted a mistake in a date, a patronage or a quotation? [Report an error](https://blessbible.app/support/#report) and we’ll fix it in the app and here.

St. Louise de Marillac

Remembered on March 15

On this page

1. [Life](https://blessbible.app/saints/st-louise-de-marillac/#life)
2. [Patron of](https://blessbible.app/saints/st-louise-de-marillac/#patron)
3. [In the calendar](https://blessbible.app/saints/st-louise-de-marillac/#calendar)

In the app

Bless shows a saint every day on its Today screen, with their life and their words. Free on iPhone.