Custos Rotulorum of County Down
The Custos Rotulorum of Londonderry and Down was the highest civil officer in counties Londonderry and Down.
For later custodes rotulorum, see Lord Lieutenant of Londonderry and Lord Lieutenant of Down
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Wikipedia
The Custos Rotulorum of Londonderry and Down was the highest civil officer in counties Londonderry and Down.
For later custodes rotulorum, see Lord Lieutenant of Londonderry and Lord Lieutenant of Down