To determine if Prince Elias Acorn is related to King Alexander Acorn, we need more information. The AI What If Scenario Generator cannot provide an answer without additional data. We need genealogical records, historical documents, or family trees detailing the lineage of both Prince Elias and King Alexander Acorn. The relationship could range from direct (father, son, brother) to distant (cousin, uncle/nephew) or even no relation at all depending on the available information. Without access to such data, any generated scenario would be pure speculation.