Duchall, an estate, with a mansion of 1768, in Kilmalcolm parish, Renfrewshire, on the right bank of the Gryfe, 1¾ mile SSW of Kilmalcolm village. From the 13th century the estate, with a castle standing 1¼ mile to- the WNW, belonged to the Lyles, the seventh of whose line was created Lord Lyle about 1446. The fourth and last Lord sold it a century later to John Porterfield of Porterfield, whose descendants held it for fully 300 years. It is now the property of Sir Michael Shaw-Stewart of Ardgowan.

(F.H. Groome, Ordnance Gazetteer of Scotland (1882-4); © 2004 Gazetteer for Scotland)