Nilus Cabasilas was a fourteenth century bishop

Bishop

A bishop is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox Churches, in the Assyrian Church of the East, in the Independent Catholic Churches, and in the...

 of Thessalonika, uncle of notable Palamite

Gregory Palamas

Gregory Palamas was a monk of Mount Athos in Greece and later the Archbishop of Thessaloniki known as a preeminent theologian of Hesychasm. The teachings embodied in his writings defending Hesychasm against the attack of Barlaam are sometimes referred to as Palamism, his followers as Palamites...

 theologian Nicholas Cabasilas

Nicholas Cabasilas

Nicholas Cabasilas was a Byzantine mystic and theological writer.Cabasilas is a saint within the Orthodox Church. His feast day is June 20.-Life:...

, and teacher of Demetrius Cydones

Demetrius Cydones

Demetrios Kydones, latinized as Demetrius Cydones or Demetrius Cydonius , was a Byzantine theologian, translator, writer and influential statesman, who served an unprecedented three terms as Mesazon of the Byzantine Empire under three successive emperors: John VI Kantakouzenos, John V Palaiologos...

. Demetrius described him as "passionately enthusiastic" about Thomism

Thomism

Thomism is the philosophical school that arose as a legacy of the work and thought of St. Thomas Aquinas, philosopher, theologian, and Doctor of the Church. In philosophy, his commentaries on Aristotle are his most lasting contribution...

, which made Cabasilas an anomaly in that he also vigorously defended Palamism and attacked the western interpolation of the creed

Nicene Creed

The Nicene Creed is the creed or profession of faith that is most widely used in Christian liturgy. It is called Nicene because, in its original form, it was adopted in the city of Nicaea by the first ecumenical council, which met there in the year 325.The Nicene Creed has been normative to the...

.

He succeeded Gregory Palamas

Gregory Palamas

Gregory Palamas was a monk of Mount Athos in Greece and later the Archbishop of Thessaloniki known as a preeminent theologian of Hesychasm. The teachings embodied in his writings defending Hesychasm against the attack of Barlaam are sometimes referred to as Palamism, his followers as Palamites...

as Archbishop of Thessalonika.