St Mary's Collegiate Church, Haddington

On the north side of the choir there is a medieval sacristy, which is now an ecumenical chapel and mausoleum of the Maitland family dedicated to the Three Kings.

The south transept contains a memorial to George Seton and a stained glass window by Edward Burne-Jones donated by the Victoria and Albert Museum as part of the restoration.

The corbelling at this level suggests that there were plans to erect a crown spire similar to that of St. Giles Cathedral in Edinburgh and St. Michael's Parish Church, Linlithgow.

The east wall of the south transept houses a memorial to William Seton, Provost of Haddington, erected in 1682.

In 1999 the church acquired a set of eight bells, cast to celebrate the coronation of George V in 1911, and originally hung as a chime in Dunecht House.

[7] These were installed between March and May 1999 and were dedicated by The Very Rev Dr John B. Cairns, the Moderator of the General Assembly of the Church of Scotland, on 6 June.

The windows date from the late 19th and early 20th century and comprise:[9] Haddington was the fourth largest town in Scotland in the High Middle Ages, and the first chartered Royal Burgh.

There is record of the church in Haddington in a charter of David I of Scotland dated 1139, giving the monks of St Andrews Cathedral Priory the benefits of its revenues.

In the late 12th century the great Abbey of Haddington was founded by Ada de Warenne, Countess of Northumbria and Huntingdon, for a community of Cistercian Nuns.

By February, 1356, Edward had crossed the Lammermuir Hills, and in revenge for Berwick, spent ten days at Haddington, where he sacked the town, and destroyed most of the buildings there, including the Franciscan Lamp of Lothian.

[12][13] John Knox is believed to have been born in Giffordgate, on the opposite bank of the River Tyne from St Mary's around 1514.

In January 1547, Wishart preached at two services in St Mary's with Knox standing guard, below the pulpit bearing a two handed sword.

There is no record of Knox having preached in St Mary's, but, as he was ordained priest there and the inventory of his estate showed that he had a pension from the Kirk in Haddington, it seems likely.