Upatissa I was King of Anuradhapura in the 4th century, whose reign lasted from 370 to 412. He succeeded his father Buddhadasa as King of Anuradhapura and was succeeded by his brother Mahanama.

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• Codrington's Short History of Ceylon

v t e Monarchs of the Sinhala kingdom
List of monarchs by reign Queens Family tree
Pre-Anuradhapura period House of Vijaya (543–237 BCE)	Prince Vijaya (543 BCE–505 BCE) Upatissa (505 BCE–504 BCE) Panduvasdeva (504 BCE–474 BCE) Abhaya (474 BCE–454 BCE) Tissa (454 BCE–437 BCE)
Anuradhapura period House of Vijaya (543–237 BCE) Chola dynasty (237–215 BCE) House of Vijaya (215–205 BCE) Chola dynasty (205–161 BCE) House of Vijaya (161–103 BCE) The Five Dravidians (103–89 BCE) House of Vijaya (89 BCE–66 CE) House of Lambakanna I (66–436) The Six Dravidians (436–463) House of Moriya (463–691) House of Lambakanna II (691–1017)	Pandukabhaya (437–367 BCE) Mutasiva (367–307 BCE) Devanampiya Tissa (307–267 BCE) Uttiya (267–257 BCE) Mahasiva (257–247 BCE) Suratissa (247–237 BCE) Sena and Guttika (237–215 BCE) Asela (215–205 BCE) Elara (205–161 BCE) Dutugamunu (161–137 BCE) Saddha Tissa (137–119 BCE) Thulatthana (119 BCE) Lanja Tissa (119–109 BCE) Khallata Naga (109–104 BCE) Valagamba (104–103 BCE) Pulahatta (103–100 BCE) Bahiya (100–98 BCE) Panya Mara (98–91 BCE) Pilaya Mara (91–90 BCE) Dathika (90–88 BCE) Valagamba (89–76 BCE) Mahakuli Mahatissa (76–62 BCE) Chora Naga (62–50 BCE) Kuda Tissa (50–47 BCE) Siva I (47 BCE) Vatuka (47 BCE) Darubhatika Tissa (47 BCE) Niliya (47 BCE) Anula (47 BCE) Kutakanna Tissa (42–20 BCE) Bhatikabhaya Abhaya (20 BCE–9 CE) Mahadathika Mahanaga (9–21) Amandagamani Abhaya (21–30) Kanirajanu Tissa (30–33) Chulabhaya (33–35) Sivali (35–35) Interregnum (35–38) Ilanaga (38–44) Chandamukha (44–52) Yassalalaka Tissa (52–60) Subharaja (60–66) Vasabha (66–110) Vankanasika Tissa (110–113) Gajabahu I (113–135) Mahallaka Naga (135–141) Bhatika Tissa (141–165) Kanittha Tissa (165–193) Cula Naga (193–195) Kuda Naga (195–196) Siri Naga I (196–215) Voharika Tissa (215–237) Abhaya Naga (237–245) Siri Naga II (245–247) Vijaya Kumara (247–248) Sangha Tissa I (248–252) Siri Sangha Bodhi I (252–254) Gothabhaya (254–267) Jettha Tissa I (267–277) Mahasena (277–304) Sirimeghavanna (304–332) Jettha Tissa II (332–341) Buddhadasa (341–370) Upatissa I (370–412) Mahanama (412–434) Soththisena (434) Chattagahaka Jantu (434–435) Mittasena (435–436) Pandu (436–441) Parindu (441) Khudda Parinda (441–447) Tiritara (447) Dathiya (447–450) Pithiya (450–452) Dhatusena (463–479) Kashyapa I (479–497) Moggallana I (497–515) Kumara Dhatusena (515–524) Kittisena (524) Siva II (524–525) Upatissa II (525–526) Silakala Ambosamanera (526–539) Dathappabhuti (539–540) Moggallana II (540–560) Kittisiri Meghavanna (560–561) Maha Naga (561–564) Aggabodhi I (564–598) Aggabodhi II (598–608) Sangha Tissa II (608) Moggallana III (608–614) Silameghavanna (614–623) Aggabodhi III (623) Jettha Tissa III (623–624) Aggabodhi III (624–640) Dathopa Tissa I (640–652) Kassapa II (652–661) Dappula I (661–664) Dathopa Tissa II (664–673) Aggabodhi IV (673–689) Unhanagara Hatthadatha (691) Manavanna (691–726) Aggabodhi V (726–732) Kassapa III (732–738) Mahinda I (738–741) Aggabodhi VI (741–781) Aggabodhi VII (781–787) Mahinda II (787–807) Dappula II (807–812) Mahinda III (812–816) Aggabodhi VIII (816–827) Dappula III (827–843) Aggabodhi IX (843–846) Sena I (846–866) Sena II (866–901) Udaya I (901–912) Kassapa IV (912–929) Kassapa V (929–939) Dappula IV (939–940) Dappula V (940–952) Udaya II (952–955) Sena III (955–964) Udaya III (964–972) Sena IV (972–975) Mahinda IV (975–991) Sena V (991–1001) Mahinda V (1001–1029)
Anuradhapura from Rohana	Kassapa VI (1029–1040) Mahalana–Kitti (1040–1042) Vikrama Pandu (1042–1043) Jagatipala (1043–1046) Parakrama Pandu (1046–1048) Loka (1048–1054) Kassapa VII (1054–1055)
Polonnaruwa period House of Vijayabahu (1055–1187) House of Kalinga (1187–1197) House of Vijayabahu (1197–1200) House of Kalinga (1200–1209) House of Vijayabahu (1209–1210) Lokissara (1210–1211) House of Vijayabahu (1211–1212) Pandyan dynasty (1212–1215) Eastern Ganga dynasty (1215–1236)	Vijayabahu I (1055–1110) Jayabahu I (1110–1111) Vikramabahu I (1111–1132) Gajabahu II (1132–1153) Parakramabahu I (1153–1186) Vijayabahu II (1186–1187) Mahinda VI (1187) Nissanka Malla (1187–1196) Vira Bahu I (1196) Vikramabahu II (1196) Chodaganga (1196–1197) Lilavati (1197–1200) Sahassa Malla (1200–1202) Kalyanavati (1202–1208) Dharmasoka (1208–1209) Anikanga (1209) Lilavati (1209–1210) Lokissara (1210–1211) Lilavati (1211–1212) Parakrama Pandya (1212–1215) Kalinga Magha (1215–1236)
Transitional period House of Siri Sanga Bo (1220–1597) House of Senasammata Vikramabahu (1469–1592)	Vijayabahu III (1220–1234) Parakramabahu II (1234–1270) Vijayabahu IV (1270–1272) Bhuvanaikabahu I (1272–1284) Interregnum (1285–1286) Parakramabahu III (1287–1293) Bhuvanaikabahu II (1293–1302) Parakramabahu IV (1302–1326) Bhuvanaikabahu III (1326–1335) Vijayabahu V (1335–1341) Bhuvanaikabahu IV (1341–1351) Parakramabahu V (1344–1359) Vikramabahu III (1357–1374) Bhuvanaikabahu V (1371–1408) Vira Bahu II (1391/92–1397) Vijayabahu VI (1397–1409) Parakramabahu Epa (1409–1412) Parakramabahu VI (1410–1467) Jayabahu II (1467–1472) Bhuvanaikabahu VI (1469–1477) Parakramabahu VII (1477) Parakramabahu VIII (1477–1489) Parakramabahu IX (1489–1513) Vijayabahu VII (1513–1521) Bhuvanaikabahu VII (1521–1551) Dharmapala (1551–1597) Sitawaka Line: Mayadunne (1521–1581) Rajasinha I (1581–1593) Rajasuriya (1593–1594) Kandyan Line: Senasammata Vikramabahu (1469– 1511) Jayavira Bandara (1511–1551) Karalliyadde Bandara (1551–1581) Kusumasana Devi (1582–1582) Rajasinha I (1582–1592)
Kandyan period House of Vimaladharmasuriya (1592–1739) Nayaks of Kandy (1739–1815)	Vimaladharmasuriya I (1592–1604) Senarat (1604–1635) Rajasinha II (1635–1687) Vimaladharmasuriya II (1687–1707) Vira Narendra Sinha (1707–1739) Sri Vijaya Rajasinha (1739–1747) Kirti Sri Rajasinha (1747–1782) Sri Rajadhi Rajasinha (1782–1798) Sri Vikrama Rajasinha (1798–1815)
Italics indicate regent. Category