Final answer:
Fortunato's name exemplifies situational irony as his unfortunate fate starkly contrasts with his 'fortunate' name, which is a common use of irony in tragedy.
Step-by-step explanation:
The type of irony related to Fortunato's name is situational irony. This is because Fortunato's fate is the opposite of what his name would suggest. In literature, situational irony occurs when the actual result of a situation contradicts the expected outcome, and in the case of Fortunato's character, his downfall contrasts with his supposedly 'fortunate' name. Tragedy often uses such ironies to enhance the emotional effect of the narrative. In the context of tragedy, it is not uncommon for characters to embody ironic twists that contribute to the overall tragic theme of the work.