'Well known' in the Bible

Simon Peter followed along with another disciple. [Note: Some think this refers to the apostle John himself, but there is no strong evidence in favor of that conclusion]. Now that disciple was [well-] known to the head priest, so was able to enter his courtyard with Jesus

while Peter stood outside at the gate. So, the other disciple, who was [well-] known to the head priest, went outside and spoke to the girl gatekeeper, [who] then brought Peter inside [too].