Constance Georgine Markievicz, Countess Markievicz (4 February 1868 – 15 July 1927), member of Irish Sinn Fein and Fianna Fail. Also one of the first women ever elected into a cabinet position. Markievicz was vital in the Easter Rising of 1916 and the Civil War in Ireland. Undoubtedly a complete badass. I mean, look at that pistol.
The proclamation of Irish Independence by Irish Republicans during the Easter Rising of 1916. The uprising was brutally crushed and several leaders were executed by British forces; however, the defeat served as a rallying cry for Irish independence, resulting in a protracted insurgency and eventual Irish independence in 1922.
Patrick Henry Pearse, Irish nationalist leader, poet, and educator. He was the first president of the provisional government of the Irish republic proclaimed in Dublin on April 24, 1916, and was commander in chief of the Irish forces in the anti-British Easter Rising that began on the same day.