Cornelius was one of the first Gentiles converted to Christianity.

The baptism of Cornelius is an important event in the history of the early Christian church, along with the conversion and baptism of the Ethiopian eunuch.
The Christian church was first formed around the original disciples and followers of Jesus, all of whom, including Jesus himself, were Jewish.
All males in that community were circumcised and observed the Law of Moses.
The reception of Cornelius sparked a debate among the leaders of the new community of followers of Jesus, culminating in the decision to allow Gentiles to become Christians without conforming to Jewish requirements for circumcision, as recounted in Acts 15.

Certain traditions hold Cornelius as becoming either the first bishop of Caesarea, or the bishop of Scepsis in Mysia.
Cornelius was one of the first Gentiles converted to Christianity. 
The baptism of Cornelius is an important event in the history of the early Christian church, along with the conversion and baptism of the Ethiopian eunuch. The Christian church was first formed around the original disciples and followers of Jesus, all of whom, including Jesus himself, were Jewish. All males in that community were circumcised and observed the Law of Moses. The reception of Cornelius sparked a debate among the leaders of the new community of followers of Jesus, culminating in the decision to allow Gentiles to become Christians without conforming to Jewish requirements for circumcision, as recounted in Acts 15.
Certain traditions hold Cornelius as becoming either the first bishop of Caesarea, or the bishop of Scepsis in Mysia.
Cornelius the Centurion