Ysbyty
Yspyty 1577 NLW WALES 4/128/4, m.25; Spytty 1581: 1580-1 MontR, p.410; Espitty 1584 MontC 44, p.10; (t.) Spitty 1596 MontC 44, p.23; Tresbutty 1597 MontC 44, p.28; Tresputtey, Trespytte 1642 NLW PRL/P/39; Tre Sputty 1667 NLW PRL/P/62; (Dwyffrwd, Tre r llan,) Tresputtu (, Cownu Llanwothyn, Cownu Llangadvan) 1649-51 NLW POWIS/N/19937; Tre Yspytty 1811 CarlisleTD
Ffridd St. John 1837 OS 1:63,360; Ffynnon y Myneich 1886 OS 1:10,560
Notes on the history of Ysbyty Ifan survive among the MSS of Revd. T. Llechid Jones in Bangor University BMSS/5332
Ysgorfawr
(vill) Scoruaur c.1205: 1204-6 CAYS, no.38, p.179 (TNA C.53/108, m.6); 1293 TNA E.179/242/54, m.18 (MontC 71, p.109); Escoruaur 1206 CAYS, no.42, p.182, and AWR, no.9, p.151; Scorvaur 1420 CAYS, no. 89, p.231
Ystog, Yr, Churchstoke
Cirestoc 1086 DBS 4.27.25; Chirstoke c.1190-c.1332: (mill of) Chirstoke c.1190:TSAS 1918, p.61; (dominium de) Chirstoke c.1195-8 EEA VII, no.184; (Gervase de) Chirstoke 1330 RegCharl, p.114; Chirstoke c.1332 CAP, p.329; Chirstok 1227 CLibR 1226-40, pp.72-3; 1422 BL Additional charter 41195 (CMW III, p.759); Chirstoc 1249 CIM 1214-1307, no.76, p.24; Chestroc 1263 RegSwin, p.86; Chircstok c.1291 PNT, p.162b; Cherestok 1332 CIM II, no.1325, p.324; Churchstoc 1542 MontC 32, p.388; Churchstocke 1570-1774 recte 1776: 1570 CPR 1569-72, p.153; 1654-5 MontC 7, p.202; 1774 recte 1776 PowysA M/Q/R/X/1, p.7; (William Turner: p.) Churstoke 1785 NLW Probate SA/1785/157; Church-stoke 1836 OS 1:63,360; Trerustok 1552 CPR Ed VI, IV, 1550-3, p. 364 (misindexed as Rhosgoch); yr ystoc c.1563 NLW Peniarth 147 (~ p.915); (o) rysdoc c.1570: c.1550-80 NLW Peniarth 80, p.152 (RMW I, p.526); (o) rystog 16th cent NLW Peniarth 100, p.331 (~ p.630); the Rustock 1583 MontC 64, p.14; The Rustock c.1712 Dwnn I, p.281, also Rustock 1611 MontC 18, p.66, (Richard Morgan: y ty gwern mynach yn mhlwy) Rystog 1820 NLW Probate B/1820/151
Owlde Churchstoke in 1598 MontC 35, p.192; Old Churstocke 1547 BL Additional charter 41211, 41212 (CMW III, p.763); a port way by the Mardee 1609 MontC 36, p.32 (NLW MS DD.543)
Mountford in MontC 49, p.212, suggests that t. Churchstoke may have been known as Y Llan and finds support in a ref. to Churchstock fawer in the p. register 1558.
Ystradefyrnwy
Stradenernoy 1338 CCR 1337-39, p.283; (vill) Streteurnowe 1441 CIPM XXV, no.618; Straid de Vurnewy 1600 MontR, p.479; Stredyvarnwey 1637 SHRA X103/1/11/6/118; Ystradavirnwy 1640 MontC 47, p.59; Streete y Vernewey 1651 NLW POWIS/N/12848; Street y fyrnwy 1670 MontC 24, p.211; Pontyscowrid alias Street y Verniew 1786 SHRA 3766/2/2/50; Street y Verniew alias Pontescowrhyd 1816 SHRA ~/2/1/117
Ystradfaelog
Stred Vallocke c.1557: 1556-8 ECPW, p.158; Stradvailog 1633 MontC 24, p.32; (cap. mess. of) Strydfaelog (, together with Red Lyain, Tythyn Keven Gole, a water corn mill, Stwffwl Vaen and Tythyn y Braich Goch, including a little close belonging to Red Castle, all in ts. of Uwchlaw’r-Coed, Surant, Wig and Maestregymer) 1650 NLW GOGERDDAN/K1/5; (Richard Swancott:) Streetvaelog (, Gwern y Pwll) 1686 NLW Probate B/1686/108; Street Faelog 1836 OS 1:63,360; (Zacharias Davies of Castle Hendre: Zacharias Davies of) Street Vaylog 1842 NLW Probate B/1842/172
Ystrad-faelog 1885 OS 1:10,560
Ystradhunod
Stredynog 1577 NLW WALES 4/128/4, m.25; Stredonodd 1578 MontR, p.405; Stredynod 1633-1674: 1633 MontC 47, p.28; c.1679 PowysA MD/BOM/3/61; (John ap John of) Stredynod 1674 NLW Probate B/1674/62; Stredynott 1652 SHRA 3766/1/1/1; (Thomas Cleaton of) Esterdynod 1756 NLW Probate B/1756/152; Ystrad Dunod 1813 CTG, p.790; (ho.) Ystrad-hynod 1890 OS 1:10,560
Ystrad Marchell
Stratmarghel c.1170 CAYS, no.1, p.246, and AWR, no.539, p.745; 1322 CChR 1300-26, p.438; (monks of) St(ra)marchell 1183 CAYS, no.5, p.148 (Wynnstay); (~) Stradmarhel c.1184: 1170-97 ~ no.2, p.146 (TNA C.53/108, m.6); 1198 ~ no.18, p.160 (Wynnstay); (monks of) Stratmarchell 1200 ~ no.24, p.167 (TNA C.53/2, m.15 = RotCh I, p.44); Stradmarchell 1202 ~ no.36, p.177 (Wynnstay) and AWR, no.564, p.763; estrat marchell 1191 MontC 51, p.167; Estradmarhell late 12th cent (1449-50) MontC 4, p.20; ystrat marchell anno 1197 (early 14th cent); Strat Marchell 1202 (1449-50) Charter rolls; 1322 MontC 5, p.129; 1584 HCamb1, xxvi; (abbot of) Strata Marcella c.1291 PNT, p.289b; (t.) STRATA MARCELLA 1535 VE IV, p.449; Ystrad Marchel 1330 RegCharl, p.144; Ystrad Marghel 1341 ~ p.188 ; Strate Marcelle Abbey c.1537: 1536-9 Leland, p.55
Ystumcolwyn
Eastane Colwyn c.1557: 1556-8 ECPW, p.156; Ystymcolwy(n) 1577 NLW WALES 4/128/4, m.25; Ystim Colwin, Istymcolwin 1588 NLW Wynnstay, ff.29, 48 (ELlSD, p.428); Ystymcolwyn 1597-1774 recte 1776: 1597 NLW POWIS/12901 (MontC 72, p.110); Ystymcolwyn 1600 MontC 31, p.339; 1637 ~ 2, p.350; 1774 recte 1776 PowysA M/Q/R/X/1, p.13; Ystin kolwyn 1645 NLW Peniarth 116 (RMW I, p.709); Ystym Golwyn c.1679 PowysA MD/BOM/3/61; (William Mathew of) Estyn colwin 1700 NLW Probate SA/1700/138; Ustym Collwyn 1701 GRO CL/DEEDS/1/3432
(ho.) Ystum-Colwyn, Ystum-Colwyn Farm 1885; Ystym Colwyn Hall, Ystum Colwyn 1953 OS 1:10,560
Ystumgynon
Ystymgenam 1588 NLW Wynnstay, ff.29, 30 (ELlSD, p.429); Ystymgynan 1589 NLW CHIRK/F/927; Ystymgynon 1596-1714: 1596 MontC 33, p.446; 1638 ~ 6, p.312; 1674 NLW PRL/CAB; 1696 PowysA MD/BOM/1/56;1716 GRO CL/DEEDS/1/3452; Ystimgynan 1608 GRO CL/DEEDS/1/3365; Ystyngynnon 1650 NLW PRL/P/43; 1671-5 ~ /P/73; Ystymgunan 1701 GRO CL/DEEDS/1/3432; Treystim Gynnon 1714 GRO CL/DEEDS/2/MONT/1/2; Ystumgynon Township 1805 GRO CL/MS 5.45