Ariyavangsagatayana (Sa Pussadeva)

His Holiness Somdet Phra
Ariyavamsagatañāṇa
(Sa Pussadeva)
Somdet Phra Sangharaja
Supreme Patriarch of Siam
In office
29 November 1893 – 11 January 1900
Personal life
BornSa
(1812-08-19)August 19, 1812
Nonthaburi, Thailand
DiedJanuary 11, 1899(1899-01-11) (aged 85)
Bangkok, Thailand
NationalityThai
Religious life
ReligionBuddhism
SchoolTheravada, Dhammayuttika Nikaya
Dharma namesPussadevo
Senior posting
PredecessorPavares Variyalongkorn
SuccessorVajirananavarorasa

Somdet Phra Ariyawongsakhatayan Somdet Phra Sangharaja (also known as Ariyavangsagatayana II; birth name Sa, monastic title Pussadevo) was the 9th Supreme Patriarch of Thailand (Sangharaja Sakolmahasanghaparinayok) during the Rattanakosin era.

He was born in 1812 in Nonthaburi Province and became widely known as the most famous Naga Luang novice in the Rattanakosin Kingdom, being the first novice in the kingdom’s history to pass the Parian Dhamma examination with all nine grades, earning him the title “Genius Novice of Rattanakosin.”

Before his appointment as Supreme Patriarch, he served as abbot of Wat Ratchapradit and resided at Wat Ratchaburana Sata Mahasima Ram Ratchaworawihan during the reign of King Chulalongkorn (Rama V). He succeeded Pavares Variyalongkorn as Supreme Patriarch in 1893 (B.E. 2436) and held the position until his death in 1899 (B.E. 2442) at the age of 87. He was succeeded by Vajirananavarorasa.