Book of Ballymote in the context of "Robert Anthony Welch"

The House of Alpin, also known as the Alpinid dynasty, Clann Chináeda, and Clann Chinaeda meic Ailpín, was the kin-group which ruled in Pictland, possibly Dál Riata, and then the kingdom of Alba from Constantine II (Causantín mac Áeda) in the 940s until the death of Malcolm II (Máel Coluim mac Cináeda) in 1034.

Kings traced their descent from Kenneth MacAlpin (and not from his father, Alpín mac Echdach), and Irish genealogies in the Book of Ballymote and the Book of Lecan refer to the kindred as Clann Cináeda meic Ailpín by prioritising descent from Kenneth.

Birch bark manuscripts are documents written on pieces of the outer layer of birch bark, which was commonly used for writing before the mass production of paper. Evidence of birch bark for writing goes back many centuries and appears in various cultures. The oldest such manuscripts are the numerous Gandhāran Buddhist texts from approximately the 1st century CE, from what is now Afghanistan. They contain among the earliest known versions of significant Buddhist scriptures, including a Dhammapada, discourses of Buddha that include the Rhinoceros Sutra, Avadanas and Abhidharma texts.

Sanskrit birch bark manuscripts written with Brahmi script have been dated to the first few centuries CE. Several early Sanskrit writers, such as Kālidāsa (c. 4th century CE), Sushruta (c. 3rd century CE), and Varāhamihira (6th century CE) mention its use for manuscripts. The bark of Betula utilis (Himalayan Birch) is still used today in India and Nepal for writing sacred mantras. Russian texts discovered in Veliky Novgorod have been dated to approximately the 11th to 15th centuries CE. Most of those documents are letters written by various people in a local dialect, Old Novgorodian. The Irish language's native writing system Ogham, sometimes called the "tree alphabet", was traditionally attributed to the god Ogma who wrote a proscription on birch to Lugh, warning him; the text of this proscription can be found in the Book of Ballymote. The first letter of Ogham is beith; beithe means "birch".

Irish clans are traditional kinship groups sharing a common surname and heritage and existing in a lineage-based society, originating prior to the 17th century. A clan (or fine in Irish, plural finte) included the chief and his patrilineal relatives; however, Irish clans also included unrelated clients of the chief. These unrelated clients and their agnatic descendants were ineligible to be elected chief, but nonetheless assumed the name of the leading lineage as a show of allegiance.

Beginning in the 8th century, various genealogical collections were compiled purporting to trace the ancestry of these clans. Among them are genealogies in Rawlinson B 502, the Book of Ballymote, the Book of Lecan, the Leabhar Mór na nGenealach compiled by Dubhaltach MacFhirbisigh, and the Ó Cléirigh Book of Genealogies. In all of these cases, the genealogies listed state the agnatic descent of the chiefs and chieftains, and not necessarily every member of the clan. At least one genetic study has concluded that while these genealogies appear fairly accurate back to the Middle Ages, they are unreliable before the 7th century.

The Cenél nGabráin was a kin group, presumed to descend from Gabrán mac Domangairt, which dominated the kingship of Dál Riata until the late 7th century and continued to provide kings thereafter. Kings of Alba and of Scotland traced their descent through Gabrán to his grandfather Fergus Mór, who was seen as the ultimate founder of the royal house as late as the 16th and 17th centuries, long after the Gaelic origins of the kingdom.

Unlike the Cenél Loairn, the Senchus Fer n-Alban does not list any kindreds within the Cenél nGabráin. However, probable descendants of Gabrán, such as Dúnchad mac Conaing and his many kinsmen, would appear to have disputed the succession with the descendants of Eochaid Buide grandson of Gabrán, so that this absence of explicit segments in the kindred may be misleading. A genealogy of David I of Scotland in the Book of Ballymote notes the following divisions:

The Royal Irish Academy (RIA; Irish: Acadamh Ríoga na hÉireann), based in Dublin, is an academic body that promotes study in the natural sciences, arts, literature, and social sciences. It is Ireland's premier learned society and one of its leading cultural and academic institutions. The academy was established in 1785 and granted a royal charter by King George III in 1786. As of 2019, the RIA has 600 members, with regular members being Irish residents elected in recognition of their academic achievements, and honorary members similarly qualified but usually based abroad; a small number of members are also elected in recognition of non-academic contributions to the Irish society. All members are entitled to use the honorific title MRIA with their names.

Until the late 19th century the Royal Irish Academy was the owner of the main national collection of Irish antiquities. It presented its collection of archaeological artefacts and similar items, which included such famous pieces as the Tara Brooch, the Cross of Cong and the Ardagh Chalice to what is now the National Museum of Ireland, but retains its very significant collection of manuscripts including the famous Cathach of Colmcille, the Lebor na hUidre (c. 1100), the later medieval Leabhar Breac, the Book of Ballymote, and the Annals of the Four Masters.