I am now more confused after reading these posts.
Since we have named the names:
1. You get Wellesley from the polygon.
2. Since you erase the other double letters, the German helper's name that runs diagonally loses three letters.
3. The 10 letter title of the Duke is within the polygon. I thought
4. I don't know what the Fedora hint means. Lid and hence Leeds?
Here are places from Wiki.
https://en.wikipedia.org/wiki/List_of_monuments_to_Arthur_Wellesley,_1st_Duke_of_Wellington
Can you please provide additional hint?
Thanks.