* Losses in battle: The English inflicted significant losses on the Armada, particularly during the Battle of Gravelines.
* Drowning: Many Spanish sailors died when their ships sank in storms.
* Disease: The Armada was plagued by disease, particularly scurvy.
It's important to note that this number only includes Spanish casualties. The English also suffered losses, although they were far fewer.
The Spanish Armada was a significant event in European history, and its casualties were a major factor in its failure.