Is John whose other name is Mark is he the brother of James who was killed by Herod is he also John the beloved of the Lord?

John, also known as Mark, is traditionally considered a different individual from John the Beloved, who is often identified as the Apostle John. James, who was killed by Herod, is the brother of John the Apostle, not John Mark. Therefore, while John Mark and John the Beloved are both important figures in the New Testament, they are distinct individuals, and John Mark is not the same as John the Beloved.