The Custos Rotulorum of Mayo was the highest civil officer in County Mayo.
Incumbents
For later (post 1831) custodes rotulorum, see Lord Lieutenant of Mayo
References
Custos Rotulorum of Mayo Wikipedia(Text) CC BY-SA
The Custos Rotulorum of Mayo was the highest civil officer in County Mayo.
For later (post 1831) custodes rotulorum, see Lord Lieutenant of Mayo