| Date | | | |
| 1202 | | Priory of the Saviour founded near the old bridge, on the site of the present courts of law, by William Marshall, earl of Pembroke. | |
| 1204 | | A great plague in Dublin. | |
| 1205 | | Writ issued for building the Castle of Dublin, for fortifying the city, and for holding a fair there for eight days, after the feast of the Invention of the Holy Cross | |
| 1207 | | King John grants a charter to Dublin. | |
| 1209 | | The citizens of Dublin, while amusing themselves in Cullen's-wood, on Easter Monday, were set upon by the Irish, of the neighbouring mountains, and 500 killed; wherefore, this day was afterwards called Black Monday, and the place, "the Bloody Fields." The city was repeopled by a new colony from Bristol; and on every succeeding Easter Monday the citizens marched out to the scene of action, with, banners displayed, and defied the Irish. | |
| 1210 | | King John received the homage of several Irish princes in Dublin: erected courts of justice in the city, and appointed judges and circuits, according to the forms of English law. Coinage of pence and farthings. | |
| 1212 | | John Comyn, archbishop of Dublin, died. He converted Saint Patrick's into a cathedral from a parish church, | |
| 1213 | | Dublin Castle completed by Henry de Loundres lord justice. The bishopric of Glendaloch incorporated with that of Dublin. | |
| 1215 | | Licence granted to the citizens of Dublin to erect a bridge over the Liffey. A new Charter granted to the city by John. | |
| 1216 | | Magna Charta, or the great charter of liberties, granted to the Irish by Henry III. | |