
The prior of Lanthony Secunda Priory was the head of the house and, from its foundation in 1137 until it became independent in 1205, also prior of Llanthony Prima.: xi : 15
The first prior of Lanthony Secunda, and the third of Llanthony Prima, was Robert de Braci, who died shortly after the church at Lanthony Secunda was consecrated.: 223 : 172 The last prior, Richard Hempsted, surrendered the priory in 1538 during the dissolution of the monasteries.: 135–143 : 470–471
Llanthony Priory began as a hermitage on the edge of the Black Mountains at the beginning of the twelfth century and into a monastery of Augustinian canons c. 1118.: xi : 15 In 1136, amid the lawlessness that followed the death of Henry I, most of the canons fled Llanthony and founded Lanthony Secunda outside Gloucester as a cell of Llanthony Prima. Lanthony Secunda remained a cell of Llanthony Prima, with a shared prior, until it became independent in 1205.: xi : 17–19
In 1481 Edward IV granted Lanthony Secunda, then under Henry Deane, a charter making Llanthony Prima a cell of its former daughter house. The charter required that Lanthony Secunda maintain at Llanthony Prima a dative prior and four canons.: 469 : 227–228
| From | Until | Incumbent | Notes |
|---|---|---|---|
| 1131 | 1137 | Robert de Braci | Third prior of Llanthony Prima and first prior of Lanthony Secunda. Died in 1137.: 223 : 172 |
| 1137 | 1150 | William of Wycombe | Elected in late 1137. Forced to resign in 1150.: 172 : 8–16 : 151 |
| 1150 | c. 1169×1174 | Clement of Llanthony | Formerly sub-prior of Llanthony. Unanimously elected in 1150.: 172 : 16–25 |
| c. 1174 | c. 1186×1189 | Roger of Norwich | Formerly sub-prior of Llanthony. First occurs as prior in 1174. Resigned or died c. 1186×1189.: 75 : 172 : 26–29 |
| c. 1185×1189 | 1203 | Geoffrey de Henlaw | First occurs as prior c. 1185×1189. Appointed bishop of St Davids in 1203 and resigned as prior. Died in 1214.: 172 : 29–33 : 151 |
| c. 1203 | c. 1205 | Martin | Eighth prior of Llanthony Prima and sixth prior of Lanthony Secunda. The two houses separated during his priorship. Elected to continue as prior of Llanthony Prima.: 225, 227 : 172 : 36–37 |
| c. 1205 | c. 1207 | Walter of Monmouth | : 173 : 37 |
| c. 1207 | c. 1216 | Gilbert | : 173 : 37 |
| c. 1217 | 1240 | John of Hempsted | Died in December 1240: 173 : 40 |
| c. 1241 | 1251 | Godfrey of Banbury | Believed to have succeeded John in 1241. Likely to be the unnamed prior who resigned in 1251.: 46 : 414 |
| 1251 | Everard (also Edward) | Succeeded in 1251: 46 | |
| c. 1260×1265 | c. 1264 | Godfrey of Banbury | Reinstated or reelected.: 46 : 414 |
| c. 1265 | William of Ashwell | First occurs in either Oct 1260×Jun 1261 or July 1263×Aug 1265. Last occurs in 1279.: 46 : 414 | |
| 1283 | 1300 | Walter of Markley (also Marckleye, Marcley, Martleg, Martleya) | Elected in March 1283 and assaulted by a fellow canon shortly after his election. Last recorded in 1300.: 61 : 414 |
| 1300 | 1301 | Thomas of Gloucester | Elected in 1300, but objected to on grounds that he was excommunicated. Resigned in 1301.: 291–292 |
| 1301 | c. 1322 | John of Chandos | First recorded as acting prior in June 1300. Last occurs in 1320.: 67 : 414 |
| c. 1322 | 1324 | William of Pendebury (also Penebury, Pyndebury) | Probably succeeded in 1322. Forced to resign by the king in March 1324.: 76 : 414 |
| 1324 | 1324 | Adam of Helnak | Granted custody of the priory by the king in May 1324 after a disputed election.: 79–80 |
| 1324 | Robert of Gloucester | Elected in 1324 but never installed as prior. Election was declared void by the bishop of Winchester in 1325 and William of Pendebury was reinstated.: 79–80 : 415 | |
| 1326 | 1362 | William of Pendebury | Reinstated in September 1326. Died in November 1362.: 81 : 415 |
| 1362 | 1377 | Simon of Brockworth | Elected in November 1362. Died in February 1377.: 92 : 415 : 36 |
| 1377 | 1401 | William of Chiriton (also Cheriton) | Elected in February 1377. Previously served as proctor of the priory in Ireland, 1360 to 1364. Died in 1401.: 96, 107 : 26 |
| 1401 | 1408 | John Lymnor (also Lymnon, Lymnour, Lymynour) | Elected in 1401. Died in August 1408.: 108 : 469 |
| 1408 | 1436 | John Wyche | Elected in August 1408. Died in April 1436.: 109, 115 : 26 : 469 |
| 1436 | 1457 | John Garland (also Garlonde, Gerland) | Elected in May 1436. Died by in October 1457.: 115–120 : 470 |
| 1457 | 1466 | John Hayward (also Heyward) | Elected in October 1457. Ceased being prior c. February 1460, shortly after being released from prison. Died in 1487.: 120–122 : 26 : 470 |
| 1466 | c. 1466×1467 | John Schoyer (also Shoyer) | : 121–122 : 470 |
| 1467 | 1501 | Henry Deane (also Dean, Denny, Deen) | Likely succeeded Schoyer in April 1461. Resigned in May 1501 to become archbishop of Canterbury. Died in 1503. Llanthony Prima became a daughter house of Lanthony Secunda during his term.: 122–131 : 470 |
| 1501 | 1525 | Edmund Forest (also Forrest, Shyar) | Elected in August 1501. Likely removed as prior in 1525.: 132–135 : 470 : 26, 230 : 29 |
| 1525 | 1538 | Richard Hempsted (also Harte, Hart) | First occurs as prior in 1525. Acknowledged royal supremacy in 1534, surrendered the priory in March 1538. Died in 1545.: 135–143 : 470–471 |