I want to play 2

Look at the last part of the riddle. Here's the next. This time I gave such a storng hint in the riddle it should take once glimps and a quick investigative powers to know the answer:

A sword, a city and people in shiny armors,
Spanish romances tell about the rumors.
A man of many a city that fell to a horse, he tells tell such stories
The most important object, what is it's geometries?
Reflect it on the letters yet once again
And hold that answer deep in your brain.