Bonkyll Castle
| Bonkyll Castle | |
|---|---|
| Berwickshire Scotland | |
| The remains of Bonkyll Castle | |
| Site information | |
| Type | Castle of Enceinte | 
| Owner | Private | 
| Open to the public | No | 
| Condition | ruined | 
| Location | |
| Location of Bonkyll in the Scottish Borders | |
| Coordinates | 55°49′42″N 2°18′41″W / 55.8284°N 2.31131°W | 
| Height | 1-3m present day | 
| Site history | |
| Built | 11th century | 
| Built by | Bonkyl, Stewart, Douglas | 
| In use | 11th–16th centuries | 
| Materials | Stone | 
Bonkyll Castle (also variously spelled Bonkyl, Boncle, Buncle, Bunkle or Bonkill) was a medieval fortress situated in the historic Scottish county of Berwickshire, from 1973 the Scottish Borders. It is situated 4 miles north of Duns and 4 miles south of Grantshouse. Few traces survive and the site is protected as a scheduled monument. It was the seat of a junior branch of the Stewart family, known as "Stewart of Bonkyl", from which was descended in another junior branch "Stewart of Darnley", the paternal family of King James VI & I of Scotland and England.