Exiles of Gondolin
The Exiles of Gondolin were survivors of the Fall of Gondolin.
During the confusion of the sack of the city, Tuor and Idril gathered all the remnants of the Gondolindrim they could find. They escaped through Idril's secret way, a tunnel that led to Tumladen. Thanks to the burning of the fountains and the city of Gondolin, they were covered in fume and mists, so they could cross the plain unnoticed.
The group ran to Cirith Thoronath, where Glorfindel killed the Balrog, saving them. Then they passed over the mountains, reaching the Sirion river, which they followed south. After many dangers, they came to Nan-tathren, and they could rest there for a while, healing their wounds, but not their sorrow.