| 351 | Princess | Princess Maria Laura of BelgiumPrincess | Austria-Este (House of) | 🇧🇪BE | | Prince Lorenz of Belgium | 1 ch.Children (no sourced line of succession) | 38 |
| 352 | Princess | Kristine de Bagration-MukhraniPrincess | Mukhrani (House of) | — | | unknown | 0 ch. | 37 |
| 353 | Prince | Prince Joachim of BelgiumPrince | Austria-Este (House of) | 🇧🇪BE | | Prince Lorenz of Belgium | 0 ch. | 34 |
| 354 | Princess | Princess Luisa Maria of BelgiumPrincess | Austria-Este (House of) | 🇧🇪BE | | Prince Lorenz of Belgium | 0 ch. | 31 |
| 355 | Princess | Giorgia Marin of LesinaPrincess | Marin | 🇮🇹IT | | unknown | 0 ch. | 28 |
| 356 | Princess of Moroccoc | Princess Lalla Khadija of MoroccoPrincess of Morocco (c) | 'Alawi dynasty | 🇲🇦MA | | Mohammed VI of Morocco | 0 ch. | 19 |
| 357 | Prince | Prince Gaston d’OrléansPrince | Orléans (House of) | 🇫🇷FR | | Jean, Count of Paris | 0 ch. | 16 |
| 358 | Prince | Giorgi BagrationiPrince | Mukhrani (House of) | 🇪🇸ES+1 | | Ana Bagration-Gruzinsky | 0 ch. | 15 |
| 359 | Princess | Anna-Astrid van Oostenrijk-EstePrincess | Austria-Este (House of) | 🇧🇪BE | | Prince Amedeo of Belgium | 0 ch. | 10 |
| 360 | Prince | Archduke Maximilian of Austria-EstePrince | Austria-Este (House of) | 🇧🇪BE | | Prince Amedeo of Belgium | 0 ch. | 7 |
| 361 | Countess | Countess Eloise of Orange-NassauCountess | Orange-Nassau (House of) | 🇳🇱NL | | Prince Constantijn of the Netherlands | 0 ch. | 24 |
| 362 | Count | Count Nikolai of MonpezatCount | Glücksburg (Denmark) (House of) | — | | Prince Joachim of Denmark | 0 ch. | 27 |
| 363 | Count | Count Claus-Casimir of Orange-NassauCount | Orange-Nassau (House of) | 🇳🇱NL | | Prince Constantijn of the Netherlands | 0 ch. | 22 |
| 364 | Countess | Countess Leonore of Orange-NassauCountess | Orange-Nassau (House of) | 🇳🇱NL | | Prince Constantijn of the Netherlands | 0 ch. | 20 |
| 365 | Count | Count Henrik of MonpezatCount | Glücksburg (Denmark) (House of) | — | | Prince Joachim of Denmark | 0 ch. | 17 |
| 366 | Countess | Countess Athena of MonpezatCountess | Glücksburg (Denmark) (House of) | — | | Prince Joachim of Denmark | 0 ch. | 14 |
| 367 | Countess | Madeleine KogevinasCountess | Bernadotte (House of) | 🇸🇪SE | | Carl Bernadotte | 5 ch.Children (no sourced line of succession) | 88 |
| 368 | Count of Rosenborg | Count Ingolf of RosenborgCount of Rosenborg | Glücksburg (Denmark) (House of) | — | | Knud, Hereditary Prince of Denmark | 0 ch. | 86 |
| 369 | Count | Michael BernadotteCount | Bernadotte (House of) | — | | Sigvard Bernadotte | 1 ch.Children (no sourced line of succession) | 82 |
| 370 | Countess | Alexandra, Countess of FrederiksborgCountess | Glücksburg (Denmark) (House of) | — | | unknown | 2 ch.Children (no sourced line of succession) | 62 |
| 371 | Countess of Rosenborg | Countess Camilla of RosenborgCountess of Rosenborg | Glücksburg (Denmark) (House of) | — | | Count Christian of Rosenborg | 4 ch.Children (no sourced line of succession) | 54 |
| 372 | Countess | Countess Luana of Orange-Nassau, Jonkvrouwe van AmsbergCountess | Orange-Nassau (House of) | 🇬🇧GB | | Prince Friso of Orange-Nassau | 0 ch. | 21 |
| 373 | Countess | Countess Zaria of Orange-Nassau, Jonkvrouwe van AmsbergCountess | Orange-Nassau (House of) | 🇬🇧GB | | Prince Friso of Orange-Nassau | 0 ch. | 20 |
| 374 | Countess of Rosenborg | Countess Feodora of RosenborgCountess of Rosenborg | Glücksburg (Denmark) (House of) | — | | Count Christian of Rosenborg | 1 ch.Children (no sourced line of succession) | 51 |
| 375 | Countess of Dampierrec | Princess Alix, Countess of DampierreCountess of Dampierre (c) | Ligne (House of) | 🇧🇪BE | | Michel, Prince of Ligne | 2 ch.Children (no sourced line of succession) | 42 |
| 376 | Countess of Ampuriasc | Sol Maria de Medina y Orléans-Bragança, 53rd Countess of AmpuriasCountess of Ampurias (c) | Medinaceli (House of) | 🇺🇸US | | Ignacio de Medina, 19th Duke of Segorbe | 0 ch. | 40 |
| 377 | Countess | Elizabeth de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Thierry de Limburg Stirum | 3 ch.Children (no sourced line of succession) | ~98 |
| 378 | Count | Albert de Limburg StirumCount | Limburg-Stirum (House of) | — | | Thierry de Limburg Stirum | 3 ch.Children (no sourced line of succession) | ~96 |
| 379 | Count | Frederic de Limburg StirumCount | Limburg-Stirum (House of) | — | | Thierry de Limburg Stirum | 3 ch.Children (no sourced line of succession) | ~95 |
| 380 | Countess | Marguerite de Limburg StirumCountess | Limburg-Stirum (House of) | 🇧🇪BE | | Thierry de Limburg Stirum | 2 ch.Children (no sourced line of succession) | ~94 |
| 381 | Count | Christian de Limburg StirumCount | Limburg-Stirum (House of) | — | | Thierry de Limburg Stirum | 4 ch.Children (no sourced line of succession) | ~92 |
| 382 | Countess | Éva NyáryCountess | Nyáry (House of) | 🇭🇺HU | | unknown | 0 ch. | 79 |
| 383 | Countess | Catherine Gravin de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Evrard de Limburg Stirum | 2 ch.Children (no sourced line of succession) | 69 |
| 384 | Count | Thierry de Limburg StirumCount | Limburg-Stirum (House of) | — | | Evrard de Limburg Stirum | 2 ch.Children (no sourced line of succession) | 67 |
| 385 | Count | Louis de Limburg StirumCount | Limburg-Stirum (House of) | — | | Evrard de Limburg Stirum | 2 ch.Children (no sourced line of succession) | 64 |
| 386 | Count | Bruno de Limburg StirumCount | Limburg-Stirum (House of) | — | | Evrard de Limburg Stirum | 4 ch.Children (no sourced line of succession) | 60 |
| 387 | Countess | Genevieve de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Albert de Limburg Stirum | 0 ch. | ~60 |
| 388 | Count | Christoph de Limburg StirumCount | Limburg-Stirum (House of) | — | | Albert de Limburg Stirum | 0 ch. | ~59 |
| 389 | Countess | Aurore de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Frederic de Limburg Stirum | 0 ch. | ~56 |
| 390 | Countess | Sophie de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Albert de Limburg Stirum | 0 ch. | ~55 |
| 391 | Countess | Barbara de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Frederic de Limburg Stirum | 0 ch. | ~54 |
| 392 | Countess | Karen Spencer, Countess SpencerCountess | Spencer (House of) | 🇨🇦CA | | unknown | 1 ch.Children (no sourced line of succession) | 53 |
| 393 | Countess | A. J. LangerCountess | Courtenay (House of) | 🇺🇸US | | unknown | 2 ch.Children (no sourced line of succession) | 52 |
| 394 | Count | Rodolphe de Limburg StirumCount | Limburg-Stirum (House of) | — | | Christian de Limburg Stirum | 2 ch.Children (no sourced line of succession) | 47 |
| 395 | Countess | Clemence de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Frederic de Limburg Stirum | 0 ch. | ~46 |
| 396 | Count | Philipp de Limburg StirumCount | Limburg-Stirum (House of) | — | | Christian de Limburg Stirum | 0 ch. | ~41 |
| 397 | Countess | Marie de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Christian de Limburg Stirum | 0 ch. | ~40 |
| 398 | Count | Francois-Guillaume de Limburg StirumCount | Limburg-Stirum (House of) | — | | Christian de Limburg Stirum | 0 ch. | ~37 |
| 399 | Count | Ionuț Silaghi de OașCount | Szilágyi (House of) | 🇷🇴RO | | Ioan Silaghi de Oaș, Count de Szilágyi-Oaș | 0 ch. | 36 |
| 400 | Countess | Gloria de Limburg StirumCountess | Limburg-Stirum (House of) | — | | Thierry de Limburg Stirum | 0 ch. | 33 |