As far as we know, the famous poet and playwright William Shakespeare never went to Ireland himself. However, Ireland appears in several of his plays. It is clear that Shakespeare knew about Ireland and wanted to write about it.
In Macbeth, Donalbain, the younger son of the king of Scotland, runs away to Ireland after his father is killed.
In Henry V, Captain Macmorris is an Irish soldier who fights with young King Henry in France.
One of the important events in Henry VI, Part 2 is a trip to Ireland.