It looks like you have a list of terms that relate to historical events and figures, particularly those involving the Crusades, trade, and exploration. Below is the clarification and the correct association based on the clues provided:
- rulers of the Holy Land - Turks
- trips to free Jerusalem - Crusades
- symbol of the Crusades - red cross
- organizations protecting traders - leagues
- origin of fine spices and silks - Asia
- fought to free Jerusalem - crusaders
- caused growth of cities - trade
- home of Prince Henry the Navigator - Portugal
- name given to Africa's tip - Cape of Good Hope
- belonging to the Middle Ages - medieval
- city held by the Turks - Jerusalem
- riches of the west African coast - gold
- threatened sailors at sea - pirates
If you have further questions or need more clarification on any items, feel free to ask!