---
title: "St. Casimir: Feast Day March 4 · Bless"
url: https://blessbible.app/saints/st-casimir/
description: "St. Casimir, Prince, patron of Poland and Lithuania. Remembered on March 4, died c. 1484. Read their life in Bless."
---

Prince · Remembered on March 4

# St. Casimir

St. Casimir is remembered on March 4 in Bless’s calendar of saints. Traditionally invoked as patron of Poland and Lithuania.

|  |  |
|---|---|
| Remembered on | [March 4](https://blessbible.app/saints/march/#4) |
| Title | Prince |
| Died | c. 1484 |
| Patron of | [Poland](https://blessbible.app/patron-saints/#poland), [Lithuania](https://blessbible.app/patron-saints/#lithuania) |
| Next on Bless’s Today screen | [Thursday, March 4, 2027](https://blessbible.app/saints/st-casimir/#calendar) |

## Life

A prince of Poland who declined his father’s wars and a proffered throne, kept a hidden austerity under court dress, and was found at night praying at locked church doors. He died of tuberculosis at twenty-five, having refused physicians’ counsel to break his vow of chastity.

## Patron of

Tradition invokes St. Casimir as patron of Poland and Lithuania.

[Poland](https://blessbible.app/patron-saints/#poland) [Lithuania](https://blessbible.app/patron-saints/#lithuania)

### Saints with the same patronage

- [St. Stanislaus](https://blessbible.app/saints/st-stanislaus/) Poland · April 11

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. Casimir. 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) |
|---|---|---|---|
| [Thursday, March 4, 2027](https://blessbible.app/calendar/2027/03/04/) | Thursday of the Third Week of Lent | Violet | Jeremiah 7:23-28 · Psalm 95:1-2, 6-7, 8-9 · Joel 2:12-13 · Luke 11:14-23 |
| [Saturday, March 4, 2028](https://blessbible.app/calendar/2028/03/04/) | Saturday after Ash Wednesday | Violet | Isaiah 58:9b-14 · Psalm 86:1-2, 3-4, 5-6 · Ezekiel 33:11 · Luke 5:27-32 |

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 3 St. Katharine Drexel](https://blessbible.app/saints/st-katharine-drexel/) [March 5 St. John Joseph of the Cross](https://blessbible.app/saints/st-john-joseph-of-the-cross/)

[All the saints of March](https://blessbible.app/saints/march/) [Born on March 4?](https://blessbible.app/saints/birthday/#03-04) [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. Casimir

Remembered on March 4

On this page

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

In the app

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