Dermot Derg mac Fergus Cerbaill O'Néill (486-565)
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Name variants
![English](/Images/flags/small/gb.png)
Dermot Derg Cerbaill
![English](/Images/flags/small/gb.png)
Dermot Derg Fergus
![English](/Images/flags/small/gb.png)
Dermot Derg mac Fergus Cerbaill O'Néill
![English](/Images/flags/small/gb.png)
Dermot Derg O'Néill
![Gaeilge](/Images/flags/small/ie.png)
Diarmait Derg mac Fergus
![Gaeilge](/Images/flags/small/ie.png)
Diarmait Derg mac Fergus mac Fergus Cerbaill O'Néill
![International format](/Images/flags/small/un.png)
Diarmait Derg Cerbaill
![International format](/Images/flags/small/un.png)
Diarmait Derg Fergus
![International format](/Images/flags/small/un.png)
Diarmait Derg mac Fergus Cerbaill O'Néill
![International format](/Images/flags/small/un.png)
Diarmait Derg MacFergus
![International format](/Images/flags/small/un.png)
Diarmait Derg MacFergus mac Fergus Cerbaill O'Néill
![International format](/Images/flags/small/un.png)
Diarmait Derg O'Néill
Gender
Male
Timeline
Birth
Roughly guessed date 486
Place
![Ireland](/Images/Flags/Small/ie.png)
Meath, County Meath, Ireland
Death
Roughly guessed date 565
Parents and Siblings
Families and children