gold
Gold bullion, silver and pearls were sometimes carried by Spanish treasure ships. However, they sometimes carried more ordinary items such as tobacco and lumber.
Ships were commonly raided during voyages. Pirates often raided Spanish ships for treasure and these ships were also raided and attacked by ships from other countries.
francis drake
The Spanish transported their stolen gold on treasure ships they sent back to Spain.
sea dogs
Sir Francis Drake
Sir Francis Drake
He plundered many Spanish ships in south America and also, he brought hoards of riches of treasure form Spanish ships he had sunk,.
francis drake
Pirates preyed on Spanish treasure ships primarily due to the immense wealth these vessels carried, especially gold and silver from the New World. The Spanish Empire, which was heavily involved in transatlantic trade, became a target for privateers and pirates seeking to capitalize on the lucrative cargo. The relative lack of naval protection for these ships, combined with the geographic routes they followed, made them vulnerable to attacks. Additionally, the political climate of the time, including rivalries between European powers, created an environment where piracy flourished.
Because he captured Spanish treasure ships.
There were many reasons such as religion, Elizabeth killing Mary his wife and Drake stealing treasure from Spanish ships