| 181 | Henry Percy (1320-1368), Lord Percy, parents: Henry de Percy and Idonia de Clifford |
| 182 | Henry Stafford (4 September 1455-2 November 1483), Duke of Buckingham |
| 183 | Henry Stafford (-) |
| 184 | Henry VII (28 January 1457-21 April 1509), King of England, parents: Edmund Tudor and Margaret Beaufort |
| 185 | Henry VIII (28 June 1491-28 January 1547), King of England, parents: Henry VII and Elizabeth of York |
| 186 | Hervé I (-1168), Vicomte de Léon |
| 187 | Honora Grenville (around 1494-April 1566), parents: Thomas Grenville and Isabel Gilbert |
| 188 | Howel (-), parents: Tudur Hen and Angharad |
| 189 | Hugh de Frene (-), Lord Frene |
| 190 | Hugh of Wells (before 1154-1235), Bishop of Lincoln, parents: Henry II |
| 191 | Hugh Swynford of Coleby and Kettlethorpe (-) |
| 192 | Hugues (XI) de Lusignan (-), Comte de la Marche |
| 193 | Humphrey (1381-2 September 1399), parents: Thomas "of Woodstock" and Eleanor de Bohun |
| 194 | Humphrey de Bohun (1276-16 March 1322), Earl of Hereford and Essex |
| 195 | Ida (-) |
| 196 | Ikenai (-) |
| 197 | Iowerth ap David (-) |
| 198 | Isabel Beaumont (-1361) |
| 199 | Isabel de Castilla (1355-23 December 1392) |
| 200 | Isabel de Warenne (-12 July 1203), parents: William de Warenne and Ela de Ponthieu |
| 201 | Isabel Gilbert (-) |
| 202 | Isabel Neville (5 September 1451-22 December 1476) |
| 203 | Isabel of Lancaster (1317-after 1 February 1347), Prioress of Amesbury, parents: Henry "Tortcol/Wryneck" of Lancaster and Maud Chaworth |
| 204 | Isabel of York (1409-2 October 1484), parents: Richard "of Conisburgh" and Anne Mortimer |
| 205 | Isabella of England (March 1274-), parents: Edward I “Longshanks” and Leonor de Castilla |
| 206 | Isabella of England (1214-1 December 1241), parents: John and Isabelle d’Angoulême |
| 207 | Isabella of England (15 February or 16 June, 1332 or 1334-1379 or 1382), parents: Edward III and Philippa de Hainaut |
| 208 | Isabella of Gloucester (12 March 1386-April 1402), Nun at the Minoresses’ Convent, parents: Thomas "of Woodstock" and Eleanor de Bohun |
| 209 | Isabella of Lancaster (1368-young), parents: John of Gaunt and Blanche of Lancaster |
| 210 | Isabelle de France (1291/92-21 November 1358), parents: Philippe IV "le Bel" and Juana I |