In Cairo they built vast palaces and ornate mosques, and expanded the influence of the great Khan el-Khalili market to expand Egypt's trading power.
The Khan el-Khalili market is not known to have had any significant connection with Egypt's trading power overall. 
mnli hypothesis: The Khan el-Khalili market is not known to have had any significant connection with Egypt's trading power overall.  premise: In Cairo they built vast palaces and ornate mosques, and expanded the influence of the great Khan el-Khalili market to expand Egypt's trading power.