The crusades began in Europe. Pope Urban the 2nd called it, because the Muslims had banned the Christians for entering or visiting Jerusalem the holy land. The Crusades were a series of wars, but the...
Are you asking about Christian (first) names or Surnames? For surnames the prefix O' meaning grandson (of) also Mc/Mac meaning son (of) which is prevalant in the Highlands of Scotland as well. The...
The Fourth Crusade began with the siege of the city of Zadar (aka Zara), a major port on the Adriatic Sea. From there the crusaders crossed the Mediterranean Sea to Egypt.