Complex sentence: English law at the time provided that a large share of the loot was owed to the sovereign, and when Queen Elizabeth disocvered the true extent of the theft, she sent Sir Walter Raleigh to reclaim her money and punish the looters.
Split into simpler sentences: English law at the time provided that a large share of the loot was owed to the sovereign. When Queen Elizabeth discovered the extent of the theft, she sent Raleigh to reclaim her money and punish the looters.