An administrative and legal division, it was formed by the Act of Union of 1536 from parts of the pre-Norman cantrefs of Penfro (the commote of Coedrath) and Cantref Gwarthaf (the commote of Efelfre).
[2] The hundred spanned the linguistic boundary, with the parishes of Velfrey being identified by George Owen[3] as Welsh-speaking, and the southern coastal part being English-speaking, part of Little England beyond Wales.
[5] The parliamentary election polling book for 1812 is held at the National Library of Wales.
[4] Land tax assessments for 1857 to 1949 are held at Pembrokeshire Archives.
[11] The jurisdiction of hundred courts was finally curtailed by the Administration of Justice Act 1977.