the answer is: tabard inn, southwark.
in "the canterbury tales," by geoffrey chaucer, the twenty-nine diverse group of pilgrims is staying at a tavern in southwark, london, as they are traveling to canterbury. they wish to visit the relics of saint thomas becket in canterbury cathedral in order to him for his when they underwent necessities.
the tree invited all its friends to its lumber party. the party was at saruman's tower in isengard because saruman had killed some trees