List of longest-reigning monarchs
Monarchs whose exact dates of rule are unknown
These monarchs are grouped according to length of reign by year in whole numbers. Within each year-grouping, they appear in historical order.

List of longest-reigning monarchs

Section Title: Monarchs whose exact dates of rule are unknown
Table Section Text: These monarchs are grouped according to length of reign by year in whole numbers. Within each year-grouping, they appear in historical order.

Rank	Name	Country	Reign	Duration (approx. years)

from	to

1	Pepi II Neferkare	Ancient Egypt	2278 BC	2184 BC	94 years (disputed)

2	Taejo	Goguryeo (Korea)	53	146	93 years (disputed)

3	Ermanaric the Ostrogoth	Oium	296 (disputed)	376	80 years (disputed)

4	Mahanyod	Hariphunchai (Thailand)	670	750	80 years

5	Raja Sawai Basavalinga I	Sundem (India)	1763	1843

6	Jangsu	Goguryeo (Korea)	413	491	78 years

7	Mirian III	Kingdom of Iberia	268 or 284	345 or 361	77 years

8	Raisingh Deo	Patna (India)	1685	1762

9	Mohan Singh	Rajgarha (India)	1638	14 April 1714	76 years

10	Tai Wu	China (Shang)	1486 BC	1411 BC	75 years

11	Vakhtang Gorgasali	Kingdom of Iberia	447	522

12	Johann Philipp	Stadion (HRE)	1666	1741

13	Sukhachain	Jind (India)	1676	1751

14	Yo-Tha	Hariphunchai (Thailand)	1197	1271	74 years

15	Wilhelm I	Sayn-Wittgenstein (HRE)	1494	1568

16	Fazl Ali Khan II Bahadur	Banganapalle	1686	1759	73 years

17	Zhao Tuo	Nanyue	208 BC	137 BC	71 years

18	Simon I	Lippe (HRE)	1273	1344

19	Heinrich VIII	Fürstenberg-Wolfach (HRE)	1419	30 November 1490

20	Pandukabhaya	Anuradhapura (Sri Lanka)	437 BC	367 BC	70 years

21	Ponhea Yat	Khmer Empire (Cambodia)	1393	1463

22	Johann Ulrich	Stadion (HRE)	1530	1600

23	Muhtarram Shah Kator The First	Chitral (India)	1585	1655

24	Shapur II	Persian Empire, Sassanid Dynasty	March 310	379	69 years

25	Huan	Qi (China)	636 BC	567 BC

26	Tshudpud Namgyal	Sikkim (part of British Raj from 1858)	1793	1863

27	Alberto Azzo II	Este and Milan	1029	20 August 1097	68 years

28	Louis XIII	Oettingen-Wallerstein (HRE)	1449	1517

29	Malojirao III	Mudhol (India)	1737	1805

30	Sultan Mahmud Shah II	Perak (Malaysia)	1653	1720	67 years

31	Johann III	Sponheim-Starkenburg (HRE)	1331	1398

32	Ramesses II	Ancient Egypt	1279 BC	1213 BC	66 years

33	Pharnavaz I	Kingdom of Iberia	302 BC	237 BC	65 years

34	Nandivarman II	Pallava Empire (India)	731	796

35	Sagramji I Kumbhoji	Gondal (India)	1648	1713

36	Mahmud III	Mali Empire	1496	1559

37	Zhao	Song (China)	468 BC	404 BC	64 years

38	Khuman III	Udaipur (India)	878	942

39	Amoghavarsha	Rashtrakuta Empire (India)	814	878

40	Friedrich IV	Castell (HRE)	1285	1349

41	Zhuang I	Qi (China)	794 BC	731 BC	63 years

42	Friedrich II	Salm-Neuweiler (HRE)	1610	1673

43	Nicolas Leopold I	Salm-Hoogstraat (HRE)	1707	1770

44	Jayavarman VIII	Khmer Empire (Cambodia)	1243	1295

45	Ibrahim Ali Khan	Tonk (British Raj)	1867	23 June 1930

46	Philipp Ernst	Hohenlohe-Waldenburg-Schillingsfürst (HRE)	1697	1759	62 years

47	Karl	Sayn-Wittgenstein-Sayn-Altenkirchen (HRE)	1741	1803

48	Franz Wilhelm	Salm-Reifferscheid-Krautheim (HRE)	1673	1734	61 years

49	Bhavsinhji I Ratanji	Bhavnagar (India)	1703	1764

50	Cynan Garwyn	Kingdom of Powys (Wales)	550	610	c. 60 years

51	Aescwine	Kingdom of Essex	527	587

52	Pawl	Glywysing (Wales)	480	540

53	Mutasiva	Anuradhapura (Sri Lanka)	367 BC	307 BC	60 years

54	Sophie	Bar (HRE)	1033	1093

55	Friedrich I	Salm-Blankenburg (HRE)	1210	1270

56	Heinrich III	Henneberg-Aschach-Römhild (HRE)	1292	1352

57	Heinrich II	Salm-Blankenburg (HRE)	1301	1361

58	Otto I	Solms-Braunfels (HRE)	1349	1409

59	Ludwig	Salm-Blankenburg (HRE)	1443	1503

60	Mayadunne	Sitawaka (Sri Lanka)	1521	1581

61	Vanghoji II Jagpalrao Nimbalkar	Phaltan (India)	1570	1630

62	Hu	Chen (China)	1045 BC	986 BC	59 years

63	Guilhem III	Toulouse	978	1037

64	Otto I	Salm-Kyrburg (HRE)	October 1548	7 June 1607

65	Nan	China (Zhou)	314 BC	256 BC	58 years

66	Harald I	Norway	872	930	c. 58 years

67	Heinrich II	Baden-Hachberg (HRE)	1231	1289	58 years

68	Jayaba Mukne	Jawhar (India)	1342	1400

69	Heinrich V	Henneberg-Schleusingen (HRE)	1347	1405

70	Nikolaus III	Tecklenburg (HRE)	1450	1508

71	Mulraj II	Jaisalmer State (India)	1762	1820

72	Muhammad Shafi ud-din II	Sambas (Borneo)	1866	1924

73	Maredydd ap Rhain	Kingdom of Dyfed (Wales)	740	797	c. 57 years

74	Jing	Qi (China)	547 BC	490 BC	57 years

75	Mithridates VI	Pontus	120 BC	63 BC

76	Vseslav of Polotsk	Polotsk	1044	1101

77	Roger II	Foix (France)	1067	1124

78	Bernhard I	Bentheim-Bentheim (HRE)	1364	1421

79	Yi Hham Hka	Kengtung (Burma)	1403	1460

80	Ernst II	Oettingen-Wallerstein (HRE)	1613	3 March 1670

81	Johannes	Waldburg-Waldsee (HRE)	1667	1724

82	Adolf Ludwig Wilhelm	Sayn-Wittgenstein-Karlsburg (HRE)	1749	1806

83	Jashwant Singh	Nabha (India)	December 1783	21 May 1840

Sentence(s)

Amoghavarsha's reign of 64 years is one of the longest precisely dated monarchical reigns on record.
The Amoghavarsha's reign of 64 years is one of the longest dated monarchical reigns.
Amoghavarsha's reign of 64 years is one of the longest precisely dated monarchical reigns on record.

final_sentence: Amoghavarsha's reign of 64 years is one of the longest precisely dated monarchical reigns on record.
final_sentence: The Amoghavarsha's reign of 64 years is one of the longest dated monarchical reigns.
final_sentence: Amoghavarsha's reign of 64 years is one of the longest precisely dated monarchical reigns on record.