Question: Formerly titled the Collegiate Church of St Peter at Westminster, of which church was John Fecknam the last abbot?
Context: The Close of the Collegiate Church of St Peter was an extra-parochial area, and later civil parish, in the metropolitan area of London, England.  It corresponded to the area of Westminster Abbey and was an enclave between the parishes of St Margaret and St John, within the City and Liberty of Westminster. John Feckenham (c. 1515 – October, 1584), also known as John Howman of Feckingham and later John de Feckenham or John Fecknam, was an English churchman, the last abbot of Westminster. This is a list of Westminster Abbey organists.  The Collegiate Church of St Peter at Westminster, popularly known as "Westminster Abbey", is a large, mainly Gothic abbey church, in the City of Westminster, London, United Kingdom, located just to the west of the Palace of Westminster.  It is the traditional site for the Coronation of the British monarch and many former kings and queens are buried there. St Peter's Collegiate Church is located on the northern side of central Wolverhampton, England.  For many centuries it was a chapel royal, and from 1480 a royal peculiar, independent of the Diocese of Lichfield and even the Province of Canterbury.  The collegiate church was central to the development of the town of Wolverhampton, much of which belonged to its dean.  Until the 18th century, it was the only church in Wolverhampton and the control of the college extended far into the surrounding area, with dependent chapels in several towns and villages of southern Staffordshire. In Christianity, a collegiate church is a church where the daily office of worship is maintained by a college of canons; a non-monastic or "secular" community of clergy, organised as a self-governing corporate body, which may be presided over by a dean or provost.  In its governance and religious observance a collegiate church is similar to a cathedral, although a collegiate church is not the seat of a bishop and has no diocesan responsibilities.  Collegiate churches were often supported by extensive lands held by the church, or by tithe income from appropriated benefices.  They commonly provide distinct spaces for congregational worship and for the choir offices of their clerical community. Sawley Abbey was an abbey of Cistercian monks in the village of Sawley, Lancashire, in England (and historically in the West Riding of Yorkshire).  Created as a daughter-house of Newminster Abbey, it existed from 1147 until its dissolution in 1536, during the reign of King Henry VIII.  A monk here, William de Remmyngton went on to become Chancellor of the University of Oxford in 1372-3.  The last two abbots of Sawley were both put to death.  Thomas Bolton was executed as a consequence of his resistance to the dissolution and William Trafford, the last Abbot, was executed in Lancaster on the 10th March 1537 alongside John Paslew, the last Abbot of Whalley Abbey, for alleged involvement in the Pilgrimage of Grace. The West End Collegiate Church is a church on West End Avenue at 77th Street on Manhattan's Upper West Side.  It is part of The Collegiate Reformed Protestant Dutch Church in the City of New York, the oldest Protestant church with a continuing organization in America.  The West End Collegiate Church and Collegiate School, which includes the adjacent Collegiate School, is listed on the U.S. National Register of Historic Places. Westminster Abbey, formally titled the Collegiate Church of St Peter at Westminster, is a large, mainly Gothic abbey church in the City of Westminster, London, just to the west of the Palace of Westminster.  It is one of the United Kingdom's most notable religious buildings and the traditional place of coronation and burial site for English and, later, British monarchs.  Between 1540 and 1556, the abbey had the status of a cathedral.  Since 1560, the building is no longer an abbey nor a cathedral, having instead the status of a Church of England "Royal Peculiar"—a church responsible directly to the sovereign.  The building itself is the original abbey church. The Church of St Peter and St Paul, Heytesbury is the Church of England parish church for the parish of Heytesbury with Tytherington and Knook, Wiltshire.  It was a collegiate church from the 12th century until 1840.  The present building is largely 13th-century and is designated as Grade I listed. St. Mary’s Collegiate Church Gowran (Gaelic/Irish: Eaglais Mhuire), also known as the Church of the Blessed Virgin of the Assumption, is located in the centre of the town of Gowran, County Kilkenny, Ireland. The Church is located close to Gowran Castle The site is a National Monument in the care of the Gowran Development Association (GDA) and the Office of Public Works (OPW).  The Church and its family connections have been of huge importance to Gowran and further afield over the centuries.  The Church is called a Collegiate Church.  The word Collegiate means that the priests or chaplains attached to it lived in community together.  i.e. collegiately.  The present church was not a monastery or an abbey.  However experts believe the church was built on the site of an earlier monastery.  The presence of an Ogham stone on the site, which is on display in the chancel, would suggest there was a place of worship here dating back 2000 years to Celtic times and beyond.
Answer: Westminster Abbey