Interior
A broad interior without aisles, the nave and chancel structurally in one and with no step at the screen. The late mediaeval roof is in nine bays with arch braced collars and trefoils and a quatrefoil above the collar, cusped braces to the purlins, the timbers more decoratively detailed at the east end. The mediaeval rood screen survives as the dominant feature of the interior. It has double running bands of vine leaves in the frieze facing the nave, single on the side facing the chancel. The lights are five at each side with a double width opening at centre, the latter with a four-centred tracery arch. In the heads of the lights there is miniature tracery. The mid-rail is plain and there are pierced panels beneath. A board affixed on the east side records the initials and date WB SB 1692, and probably refers to some alteration in the chancel. The rood loft does not survive, but the altar rails are a full width set of panels carved in tracery which may have been taken from a rood loft; however, Glynne, visiting in 1855, made no mention of them.
Part of the nave is partitioned off as a vestry. Plain mid C19 pews throughout and similar choir stalls in chancel. To the right of the nave is a pulpit marked and dated WR IH 1695, with steps in timber. At the west of the nave is an octagonal font, perhaps C15, the foot restored. At the centre of the nave is a wooden chandelier, with the letters S T K R and the date 1725, hanging by a chain. The top detail grasping the chain and the corresponding bottom pendant are serpents' heads, the latter grasping an apple. This was removed from the vestry in the C20. Large oak dugout parish chest with wrought ironmongery.
The stained glass includes a large quantity of finely coloured mixed glass in the upper lights of the east window, perhaps dated 1538. The south window of the chancel is in memory of the wife of the Rev. T Hughes, 1865: strongly coloured glass with dominant reds and blues, by Holland of Warwick, showing the Crucifixion with the Virgin and St John.
At the north of the chancel are three plaques, including one to the Rev. Thomas Roberts, rector and also chief master of Ruthin school [1796]: oval marble on a grey ground; small urn above, fan below. On the north wall of the nave, within the vestry, is an Elizabethan wooden wall monument to Evan Lloyd ap Rice of Derwen Hall, Gwen his wife [1576] and later descendants, in a frame painted with repeated skulls and crossed bones. At the head is the line 'Glory be to God on High'. The monument is surmounted by a hatchment.
The Royal Arms of the period 1801-37, two boards recording benefactions to the poor written in Welsh and in English (1788) and an ICBS grant notice are on the west wall.