structural:expansion, quality:corruption
Scotland

From the 10th century the Kingdom of Alba was ruled by chiefs (toisechs) and subkings (mormaers) under the suzerainty, real or nominal, of a High King. Popular assemblies, as in Ireland, were involved in law-making, and sometimes in king-making, although the introduction of tanistry —naming a successor in the lifetime of a king—made the second less than common. These early assemblies cannot be considered "parliaments" in the later sense of the word, and were entirely separate from the later, Norman-influenced, institution.

The Parliament of Scotland evolved during the Middle Ages from the King's Council of Bishops and Earls. The unicameral parliament is first found on record, referred to as a colloquium, in 1235 at Kirkliston (a village now in Edinburgh).

By the early fourteenth century the attendance of knights and freeholders had become important, and from 1326 burgh commissioners attended. Consisting of the Three Estates; of clerics, lay tenants-in-chief and burgh commissioners sitting in a single chamber, the Scottish parliament acquired significant powers over particular issues. Most obviously it was needed for consent for taxation (although taxation was only raised irregularly in Scotland in the medieval period), but it also had a strong influence over justice, foreign policy, war, and all manner of other legislation, whether political, ecclesiastical, social or economic. Parliamentary business was also carried out by "sister" institutions, before c. 1500 by General Council and thereafter by the Convention of Estates. These could carry out much business also dealt with by Parliament – taxation, legislation and policy-making – but lacked the ultimate authority of a full parliament.

The parliament, which is also referred to as the Estates of Scotland, the Three Estates, the Scots Parliament or the auld Scots Parliament (Eng: old), met until the Acts of Union merged the Parliament of Scotland and the Parliament of England, creating the new Parliament of Great Britain in 1707.

Following the 1997 Scottish devolution referendum, and the passing of the Scotland Act 1998 by the Parliament of the United Kingdom, the Scottish Parliament was reconvened on 1 July 1999, although with much more limited powers than its 18th-century predecessor. The parliament has sat since 2004 at its newly constructed Scottish Parliament Building in Edinburgh, situated at the foot of the Royal Mile, next to the royal palace of Holyroodhouse.