Note: this list of places includes island features such as summits, but not islands as such.
Prince William's SeatMountainDublin/ WicklowCounty in Leinster Province, in Arderin List, Pale grey fine to coarse-grained granite Bedrock
Height:553.5mOS 1:50k Mapsheet: 56Grid Reference: O17685 18273 Place visited by 610 members. Recently by: a3642278, jasonmac, Carolyn105, mlmoroneybb, Ansarlodge, michaelseaver, Wes, padstowe, Hillwalker65, loftyobrien, eflanaga, hannahlk, JoHeaney, adgrenna, LauraG I have visited this place: NO (You need to be a logged-in member to change this.)
Longitude: -6.23961, Latitude: 53.202143 , Easting: 317685, Northing: 218274 Prominence: 41.04m, Isolation: 1.4km, Has trig pillar ITM: 717608 718303, GPS IDs, 6 char: PrncWl, 10 char: PrncWlmsSt Bedrock type: Pale grey fine to coarse-grained granite, (Type 2e equigranular)
Apparently named after William, son of George IV, after a royal visit in 1821. This begs the question: What was it called before that? There must have been a native Irish name. Unfortunately Price provides no answer to this in PNCW. On the map of Wicklow contained in Wright's A Guide to the County of Wicklow (1827) this area is named Commons B.nulty, i.e. Commons of Ballynulty, which is a sub-division of the townland of Annacrivey. Since Prince William's Seat and Knocknagun they are only separated by a small saddle, it is possible that the name Knocknagun was applied to both peaks, but this is only conjecture.
Prince William's Seat is the 414th highest place in Ireland. Linkback: https://mountainviews.ie/summit/352/