7 long reining current monarchs

1. King Bhumibol Adulyadej - Thailand - 65 years
2. Queen Elizabeth II - UK, Canada, Australia and New Zealand - 59 years, 123 days
3. Sultan Tuanku Abdul Halim Mu'adzam Shah - Malaysia - 52 years 330 days
4. Sultan Hassanal Bolkiah - Brunei - 43 years, 247 days
5. King Goodwill Zwelithini kaBhekuzulu - Zulu People - 42 years, 265 days
6. Sultan Qaboos bin Said al Said - Oman - 40 years 321 days
7. Queen Margrethe II - Denmark - 39 years, 146 days