Question: What is the name of the ancient officer position once held by Theobald Walter, 1st Chief Butler of Ireland

Context articles: Theobald le Botiller, 2nd Chief Butler of Ireland
Edmund Butler, Earl of Carrick
Thomas Butler, 1st Baron Dunboyne
Theobald Butler, 3rd Chief Butler of Ireland
Baron Dunboyne
High Sheriff of Lancashire
Theobald Butler, 1st Baron Cahir
Butler dynasty
Theobald Walter, 1st Chief Butler of Ireland
Theobald Butler, 4th Chief Butler of Ireland

Theobald le Botiller, also known as Theobald Butler, 2nd Baron Butler (January 1200 – July 19, 1230) was the son of Theobald Walter, 1st Baron Butler and Maud le Vavasour.
 He had livery of his lands on 18 July 1222.
Edmund Butler, Earl of Carrick and 6th Chief Butler of Ireland (1268 – 13 September 1321) was a noble in the Peerage of Ireland.
 He was the second son of Theobald Butler, 4th Chief Butler of Ireland.
 Edmund went on pilgrimage to Santiago de Compostela in 1321 but died in London on 13 September 1321.
 He was buried in St. Mary's Collegiate Church Gowran, County Kilkenny on the 10th of November 1321.
Thomas Butler, 1st Baron Dunboyne (1271-October 9 1329) was the third son of Theobald Butler, 4th Chief Butler of Ireland and Joan FitzJohn.
Theobald Butler, 3rd Chief Butler of Ireland (1224 – December 26 1248) was 6 years old when his father, Theobald died.
 His mother was Joan de Marisco, daughter of the Justiciar of Ireland, Geoffrey de Marisco.
Baron Dunboyne was a title first held by the Petit family some time after the Norman invasion of Ireland.
 Dunboyne was part of the Lordship of Meath.
 The Petit family also had land holdings in Mullingar.
 In 1227, Ralph Petit became Bishop of Meath.
 In that capacity he founded a priory of the Blessed Virgin in Mullingar and he endowed this establishment with the townland of Kilbraynan (or Kilbrena) in Dunboyne, along with the rectory of Dunboyne, its tithes and other ecclesiastical revenues.
 A century later, Thomas Butler, son of Theobald Butler, 4th Chief Butler of Ireland, married Sinolda, heiress of William le Petit.
 In 1324, Butler was created Baron Dunboyne by prescription.
 In this way, the Dunboyne properties and titles passed to the Butlers.
 In 1541, the barony was created by patent in the Peerage of Ireland.
 The barons are alternately numbered from the early 14th century by numbers ten greater than the number dating to the patent (e.g. the 28th/18th Baron Dunboyne died May 19, 2004).
 The first baron of this sequence in turn married the heiress to an earlier line of Barons Dunboyne.
The High Sheriff of Lancashire is an ancient officer, now largely ceremonial, granted to Lancashire, a county in North West England.
 High Shrievalties are the oldest secular titles under the Crown, in England and Wales.
 The High Sheriff of Lancashire is the representative of the monarch in the county, and is the "Keeper of The Queen's Peace" in the county, executing judgements of the High Court through an Under Sheriff.
Theobald Butler, 1st Baron Cahir (of the second creation) (died 1596) was the son of Piers Butler of Cahir and the nephew of Thomas Butler, 1st Baron Cahir (of the first creation).
 As Theobald's first cousin Edmund, the 2nd Baron, died without issue, the title became extinct.
 It was, however, revived on May 6, 1583 in Theobald's favour.
 He became the 1st Baron Cahir (of the second creation) and ruled much of the barony of Iffa and Offa West.
The House Butler refers to the several branches of the Butler family (Irish: "de Buitléir" ) that has its origins in the Hiberno-Norman or Cambro-Norman family that participated in the Norman invasion of Ireland in the 12th century.
 Variant spellings include "le Boteler" and "le Botiller".
 The surname has its origins in the hereditary office of Butler of Ireland.
 The family originates with Theobald Walter, 1st Chief Butler of Ireland.
 Many of the branches eventually begin to extend out to various countries in Europe and North America as many descendants immigrated out of Ireland and England in later years.
Theobald Walter (sometimes Theobald FitzWalter, Theobald Butler, or Theobald Walter le Boteler) was the first Chief Butler of Ireland.
 He also held the office of Chief Butler of England and was the High Sheriff of Lancashire for 1194.
 Theobald was the first to use the surname Butler of the Butler family of Ireland.
 He was involved in the Irish campaigns of King Henry II of England and John of England.
 His eldest brother Hubert Walter became the Archbishop of Canterbury and justiciar and Lord Chancellor of England.
Theobald Butler, 4th Chief Butler of Ireland (1242 – 26 September 1285) was the son of Theobald Butler, 3rd Chief Butler of Ireland and Margery de Burgh, daughter of Richard Mor de Burgh, 1st Lord of Connacht.
 He assisted King Edward I of England in his wars in Scotland.
 He died at the castle of Arklow, County Wicklow, Ireland, and was buried at Arklow Monastery.