Complex sentence: The indications were so convincing that in 1487 the monastic authorities were obliged to install him as Gendun Drup's tulku; he was informally recognised, inducted into the monastery and renamed Gendun Gyatso (1475-1542).
Split into simpler sentences: The indications were so convincing that in 1487 the monastic authorities were obliged to install him as Gendun Drup's tulku. He was informally recognised, inducted into the monastery and renamed Gendun Gyatso (1475-1542).