Walter de Bidun
Walter de Bidun († 1178) was a clerk of King William of Scotland, Chancellor of Scotland and Bishop-elect of Dunkeld. Walter was a witness to a charter that granted the mainland properties of Iona Abbey, then under the rule of the Lord of the Isles, to the Monks of Holyrood Abbey. He was elected to the bishopric of Dunkeld in 1178 after the death of the previous bishop, Richard. However, Walter did not live long enough to receive consecration, and in fact he too met his death in the year 1178.
- Cowan volI, p79
- Keats-Rohan, p326
- Cowan, Samuel, The Lord Chancellors of Scotland Edinburgh 1911. 
- Dowden, John, The Bishops of Scotland, ed. J. Maitland Thomson, (Glasgow, 1912)
- Keats-Rohan, K. S. B. (1999). Domesday Descendants: A Prosopography of Persons Occurring in English Documents, 1066–1166: Pipe Rolls to Cartae Baronum. Ipswich, UK: Boydell Press. ISBN 0-85115-863-3.
| Bishop of Dunkeld
| Chancellor of Scotland
Roger de Beaumont