The nave furnishings were designed by the local artist and craftsman
Ralph Hedley in the early 20th century, after the parish church of St Nicholas became a cathedral in 1882. The
high altar depicts
Christ in Majesty holding an orb and sceptre, flanked by the
Four Evangelists each with their special symbol. Inside the cathedral a finely carved marble monument commemorates Admiral
Lord Collingwood (1748–1810), born just to the south of the cathedral in a house in The Side, who took over command at the
Battle of Trafalgar (21 October 1805) after the death of Admiral
Lord Nelson. Collingwood was baptised and married in St Nicholas's and each year, on 21 October, a wreath is laid in his memory in front of the monument. His body was buried in
St Paul's Cathedral in London, near to that of Nelson. The cathedral is filled with beautiful
stained glass. Much of the original glass was broken during the
Civil War and most now dates from the 18th century onwards. St Margaret's Chapel contains the only known fragment of medieval stained glass in the cathedral, a beautiful
roundel of the
Madonna feeding the Christ Child. More-modern stained glass works such as in St. George's Chapel were erected in honour of two of Tyneside's late 19th-/early 20th-century industrial pioneers, who both died in 1931 within weeks of each other. Other references to industry can be found in the cathedral's stained glass, including in the
Charles Parsons window, which features
Turbinia, the first turbine-driven steam yacht, with which Parsons astonished the Queen's Navy at the Spithead naval review in 1897. of Roger and Agnes Thornton and their fourteen children. It was originally in
All Saints' Church nearby. The cathedral contains a number of memorials, the oldest being a 13th-century
tomb effigy of a knight in armour, thought to be Peter le Marechal, sword-bearer to
King Edward I. It is one of the oldest objects in the cathedral. Another is the Thornton Brass, a
monumental brass to
Roger Thornton and his wife; he was a successful merchant, three times Mayor of Newcastle, several times Member of Parliament, and great benefactor to the cathedral. This is one of the finest examples of a
Flemish brass and dates from at least as early as 1441 (maybe pre-1429); it is believed to be the largest brass in the United Kingdom, and originally it covered Thornton's tomb in the nearby
All Saints' Church, Newcastle upon Tyne. This commemoration to Thornton, his wife, seven sons and seven daughters can now be seen fixed vertically on the far side of the High Altar of Newcastle Cathedral, facing the east window. A horizontal replica was previously kept near the north door of the cathedral for
brass rubbing purposes. These include two belonging to the
Royal Naval Division (Hood Battalion and Hawke Battalion), and 16 belonging to battalions of the Northumberland Fusiliers (8th, 9th, 10th, 11th 12th & 13th, 14th, 16th (Newcastle Commercials),
17th (North Eastern Railway Pioneers), 18th (1st Tyneside Pioneers), 19th (2nd Tyneside Pioneers), 22nd (3rd
Tyneside Scottish), 24th (1st
Tyneside Irish), 51st, 52nd, 53rd and 2nd Garrison). ==Dean and chapter==