Complex sentence: Later portolans, particularly those of the Majorcan school, with their rich colors and intricate illustrations, may have had this in mind and several portolans were known to be made to be presented as gifts to princes and kings.
Split into simpler sentences: Later portolans, particularly those of the Majorcan school, with their rich colors and intricate illustrations, may have had this in mind. Several portolans were known to be made to be presented as gifts to princes and kings.