Cyfres ABA 1 - Breconshire estate rentals and audit books (main series)

Audit books of the Dderw, Palleg and Tredegar estates in Breconshire, and the successor post-1806 Breconshire estate.
The books contain the settled accounts (the 'audits') of the Breconshire and Dderw estates. The audit books generally consist of fair copies of the rental and of any other accounts for which the agent was responsible, generally including casual profits and promiscuous payments. On most estates these audited accounts between the agent and the owner were loosely called rentals; on the Tredegar estate they were called audit books. -- There are three series of audit books: the main series, 1762-1927 (ABA 1), a series of copy audit books, 1872-1915 (ABA 2), and rough copy audit books, 1887-1915 (ABA 3). Two copies of the audit books were prepared during the period 1868-1889, one for the estate and one for the agent. Some of the volumes are inscribed either 'Mr Carlisle' or 'Mr Thomas', Lord Tredegar's auditor and agent respectively. The estate's copies are in ABA 1, while the agent's duplicates form series ABA 2, except for the period 1873-1886, where the agent's copies are in the main series at ABA 1/14, 16 and 18, in place of missing volumes. Starting in 1890, when only one copy of the audit was made, the remaining space in both ABA 1/19 and 20, the duplicate books started in 1887, was used before starting a new volume. Thus ABA 1/20 contains the audits for 1887-1891, and ABA 1/19 the audits for 1887-1889 and 1892-1893. -- The series of settled accounts ends in 1915 with ABA 1/26, although there were presumably further volumes, as ABA 1/26 also contains summaries of various payments, 1921-1927. -- In 1847 the rental consists of properties in the parishes of Cantref, Defynnog, Y Faenor, Garthbrengi, Hay, Llandyfalle, Llan-ddew, Llandyfaelog, Llanfihangel Nant Brân, Llanfilo, Llanhamlach, Llansbyddyd, Llys-wen, Merthyr Cynog, Penderyn, St David, St John the Evangelist and Ystradfellte, tithes in the parishes of St John the Evangelist and St Mary, the Palleg estate in the parish of Ystradgynlais. By 1867, rents in the parishes of Llandeilo'r-fân, Llanfihangel Fechan, Glasbury, Llywel and Ystradgynlais are included, as are ground rents in Ystradgynlais and Brecon, and tithes in Ystradfellte.