Name variants
![Cymraeg](/Images/flags/small/_Wales.png)
Friedrich I ap Simon
![Cymraeg](/Images/flags/small/_Wales.png)
Friedrich I ap Simon von Leiningen
![English](/Images/flags/small/gb.png)
Frederick I FitzSimon
![English](/Images/flags/small/gb.png)
Frederick I FitzSimon of Leiningen
![English](/Images/flags/small/gb.png)
Frederick I Leiningen
![English](/Images/flags/small/gb.png)
Frederick I of Leiningen
![English](/Images/flags/small/gb.png)
Frederick I Simonson
![English](/Images/flags/small/gb.png)
Frederick I Simonson of Leiningen
![English](/Images/flags/small/gb.png)
Friedrich I FitzSimon
![English](/Images/flags/small/gb.png)
Friedrich I FitzSimon of Leiningen
![English](/Images/flags/small/gb.png)
Friedrich I of Leiningen
![English](/Images/flags/small/gb.png)
Friedrich I Simonson
![English](/Images/flags/small/gb.png)
Friedrich I Simonson of Leiningen
![Gàidhlig](/Images/flags/small/_Scotland.png)
Friedrich I MacSimon
![Gàidhlig](/Images/flags/small/_Scotland.png)
Friedrich I MacSimon von Leiningen
![International format](/Images/flags/small/un.png)
Friedrich I FitzSimon von Leiningen
![International format](/Images/flags/small/un.png)
Friedrich I Leiningen
![International format](/Images/flags/small/un.png)
Friedrich I Simonsson
![International format](/Images/flags/small/un.png)
Friedrich I Simonsson von Leiningen
![International format](/Images/flags/small/un.png)
Friedrich I von Leiningen