Who are Troilus and Leander and how are they relevant to the themes of As You Like It?
Rosalind mentions them specifically in her "men have died from time to time, and worms have eaten them, but not for love" speech.
Troilus is a character in the story of the Trojan war who also appears in another play by Shakespeare, Troilus and Cressida. He is a Trojan, son of Priam and brother of Hector. He is in love with Cressida and arranges for Pandarus to act as a go-between to help him seduce her. The couple exchange love vows. Cressida, however, is actually in love with Diomedes, and gives to him a present that Troilus gave to her. At the end of the play, Troilus, discovering Cressida's perfidy, is disillusioned.
Leander: In the Greek myth of Hero and Leander, Hero is a pledged virgin. Leander secretly swims the Hellespont each night to be with her, guided by a light in her window. One night, the wind blows out the flame and Leander drowns. Hero finds his body and kills herself.