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Sir Roger Mostyn, 5th Baronet

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at a by-election on 26 April 1758 replacing his late father. His family had the dominant electoral interest in Flintshire and he was returned unopposed at general elections in 1761, 1768, 1774, 1780, 1784, 1790 and 1796. Mostyn was a Whig whose voting record became a concern to his constituents, and
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Mostyn died on 26 July 1796, "much regretted and esteemed for his many public and private virtues". He and his wife Margaret had a son Thomas and 6 daughters. He was succeeded in the baronetcy and Parliamentary seat by Thomas, who died unmarried, causing the baronetcy to become extinct. Of his
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He married Margaret Wynn, daughter of Rev. Hugh Wynn, DD, prebendary of Salisbury on 19 May 1766. She was heiress of her father and two uncles
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A Genealogical and Heraldic History of the Extinct and Dormant Baronetcies of England, Ireland, and Scotland
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and his wife Sarah Western, daughter and co-heiress of Robert Western of London. He was educated at
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of Downing, threatened to create an opposition although nothing came of it.
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from 1772 to his death. He was a Lieutenant-Colonel in the Flintshire Militia.
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in 1751. On the death of his father on 24 March 1758 he succeeded to the
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Alumni Oxonienses: the Members of the University of Oxford, 1715–1886
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Members of the Parliament of Great Britain for Welsh constituencies
20: 140:, while Catherine, Essex and Maria Bridget were unmarried. 8: 130:Sir Thomas Swymmer Mostyn-Champneys, 2nd Bt 262: 157: 155: 153: 149: 64:from 1745 to 1751 and matriculated at 368:Baronets in the Baronetage of England 239: 237: 235: 7: 202:. Oxford: Parker and Co – via 138:Sir Robert Williames Vaughan, 2nd Bt 193:"Mostyn, (Sir) Roger (Bart.)"  162:John Burke, Bernard Burke (1844). 14: 95:Mostyn was returned unopposed as 40:for 38 years from 1758 to 1796. 363:Alumni of Christ Church, Oxford 413:Lord-lieutenants of Flintshire 247:. History of Parliament Online 134:Sir Edward Pryce Lloyd, 2nd Bt 117:Custos Rotulorum of Flintshire 50:Sir Thomas Mostyn, 4th Baronet 1: 128:daughters, Charlotte married 113:Lord Lieutenant of Flintshire 34:Sir Roger Mostyn, 5th Baronet 104:in 1784 his brother-in-law, 267:Parliament of Great Britain 115:from 1761 to his death and 434: 220:. Flintshire Record Office 44:Early life and inheritance 331: 318: 310: 303: 293: 280: 272: 265: 168:. W. Clowes. p. 378 29:, was extended over time 136:and Anna-Maria married 297:Sir Thomas Mostyn, Bt. 276:Sir Thomas Mostyn, Bt. 48:Mostyn was the son of 30: 16:Politician (1734–1796) 408:British MPs 1790–1796 403:British MPs 1784–1790 398:British MPs 1780–1784 393:British MPs 1774–1780 388:British MPs 1768–1774 383:British MPs 1761–1768 378:British MPs 1754–1761 305:Baronetage of England 123:Later life and legacy 66:Christ Church, Oxford 24: 283:Member of Parliament 132:, Elizabeth married 97:Member of Parliament 81:Evan Lloyd Vaughan 62:Westminster School 31: 341: 340: 335:Sir Thomas Mostyn 332:Succeeded by 314:Sir Thomas Mostyn 294:Succeeded by 111:Mostyn served as 425: 311:Preceded by 273:Preceded by 263: 257: 256: 254: 252: 241: 230: 229: 227: 225: 214: 208: 207: 195: 184: 178: 177: 175: 173: 159: 91:Political career 38:House of Commons 433: 432: 428: 427: 426: 424: 423: 422: 343: 342: 337: 328: 323: 316: 299: 290: 278: 261: 260: 250: 248: 243: 242: 233: 223: 221: 216: 215: 211: 186: 185: 181: 171: 169: 161: 160: 151: 146: 125: 93: 46: 17: 12: 11: 5: 431: 429: 421: 420: 415: 410: 405: 400: 395: 390: 385: 380: 375: 370: 365: 360: 355: 345: 344: 339: 338: 333: 330: 317: 312: 308: 307: 301: 300: 295: 292: 279: 274: 270: 269: 259: 258: 231: 209: 188:Foster, Joseph 179: 148: 147: 145: 142: 124: 121: 106:Thomas Pennant 92: 89: 45: 42: 15: 13: 10: 9: 6: 4: 3: 2: 430: 419: 418:Mostyn family 416: 414: 411: 409: 406: 404: 401: 399: 396: 394: 391: 389: 386: 384: 381: 379: 376: 374: 371: 369: 366: 364: 361: 359: 356: 354: 351: 350: 348: 336: 327: 324: 322: 315: 309: 306: 302: 298: 289: 288: 284: 277: 271: 268: 264: 246: 240: 238: 236: 232: 219: 213: 210: 205: 201: 200: 194: 190:(1888–1892). 189: 183: 180: 167: 166: 158: 156: 154: 150: 143: 141: 139: 135: 131: 122: 120: 118: 114: 109: 107: 102: 98: 90: 88: 86: 85:Savage Mostyn 82: 78: 73: 71: 67: 63: 59: 55: 51: 43: 41: 39: 35: 28: 23: 19: 326: 319: 281: 249:. Retrieved 222:. Retrieved 218:"Mostyn MSS" 212: 197: 182: 170:. Retrieved 164: 126: 110: 94: 77:Robert Wynne 74: 47: 33: 32: 18: 358:1796 deaths 353:1734 births 325:(of Mostyn) 172:18 November 54:Mostyn Hall 27:Mostyn Hall 347:Categories 329:1758–1796 291:1758–1796 287:Flintshire 204:Wikisource 144:References 101:Flintshire 58:Flintshire 25:Sketch of 70:baronetcy 251:26 March 224:26 March 321:Baronet 285:for 253:2016 226:2016 174:2017 99:for 79:and 72:. 52:of 349:: 234:^ 196:. 152:^ 87:. 56:, 255:. 228:. 206:. 176:.

Index


Mostyn Hall
House of Commons
Sir Thomas Mostyn, 4th Baronet
Mostyn Hall
Flintshire
Westminster School
Christ Church, Oxford
baronetcy
Robert Wynne
Evan Lloyd Vaughan
Savage Mostyn
Member of Parliament
Flintshire
Thomas Pennant
Lord Lieutenant of Flintshire
Custos Rotulorum of Flintshire
Sir Thomas Swymmer Mostyn-Champneys, 2nd Bt
Sir Edward Pryce Lloyd, 2nd Bt
Sir Robert Williames Vaughan, 2nd Bt



A Genealogical and Heraldic History of the Extinct and Dormant Baronetcies of England, Ireland, and Scotland
Foster, Joseph
"Mostyn, (Sir) Roger (Bart.)" 
Alumni Oxonienses: the Members of the University of Oxford, 1715–1886
Wikisource
"Mostyn MSS"

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