John 17-18

Many Bible scholars believe that John the son of Zebedee was the unnamed disciple who accompanied Peter to the high priest's house. In 18:15 it is noted that John was well known by the high priest. I wonder how that came about? Was John's mother closely related to Annas? Had Zebedee struck up a friendship with Caiaphas? Had John and James delivered fresh fish to the high priest when they came to Jerusalem for the feasts? Better yet did the high priest know that John was a disciple of Jesus?
Stuart