Final answer:
The question is asking about a prince and his friends who lock themselves in an abbey when half of the kingdom dies from a certain cause. The subject of this question is likely related to a literary work or play, possibly a tragedy or historical drama set in a kingdom. Additional information or context is necessary to provide a more accurate answer.
Step-by-step explanation:
The question is asking about a prince and his friends who lock themselves in an abbey when half of the kingdom dies from a certain cause. Although the provided information does not mention the specific cause, it does contain various passages related to the suffering of a king and the loss of his sons. These passages suggest that the subject of this question is related to a literary work or play, likely a tragedy or historical drama set in a kingdom. The grade level for this question is High School, as it requires understanding and analysis of literary themes and events.
One potential example of a relevant literary work is William Shakespeare's play, Hamlet. In Hamlet, the prince (Hamlet) and his friends hide in the castle when the kingdom is plagued by death and tragedy. However, without more context or specific information, it is difficult to provide a definitive answer.
It is important to note that additional information or context is necessary to provide a more accurate answer. Without specific details about the literary work or play being referenced, it is challenging to give a precise answer to the question posed.