Gwalther was in regular communication with English bishops .
His son Rudolf Gwalther the younger ( 1552 -- 77 ) likewise enhanced his influence in England when he studied in Oxford in the early 1570s .
Rudolf Gwalther was in regular communication with English bishops .
His son Rudolf Gwalther the younger ( 1552 -- 77 ) likewise enhanced his influence in England when he studied in Oxford in the early 1570s .