
For more information, here is Dr Takayanagi's blog:
With thanks to the National Library of Ireland for most of the images used in this video. Full image credits are given below.
0.36: Constance Markievicz, photo by A. H. Poole, NLI NPA POLF203
1.00: Constance Markievicz in uniform, kneeling against a studio prop holding a gun, studio full-length portrait, Keogh Brothers Ltd., photographers, NLI KE 82
1.26: Constance Markievicz, NLI MS 33 12814 front
1.47: Dublin Bread Company, the remains of the Dublin Bread Company at 6-7 Lower Sackville Street (now O'Connell Street) after the Easter Rising in 1916, NLI KE 115
2.31: Constance Goore Booth and Count Casimir Dunin Markievicz, NLI NPA SHE10
3.35: Constance Markievicz, NLI NPA POLF210
4.09: Daniel O’Connell, Public Domain
5.26: Dáil Éireann meeting in the Mansion House, August, 1921, NLI KE 221
5.45: Constance Markievicz campaigning, NLI KE 139