Wealhtheow is a character from the Old English epic poem "Beowulf." She is the queen of the Danes, the wife of King Hrothgar, and is known for her grace and wisdom. Wealhtheow plays a significant role in the poem by serving as a peace-weaver and a hostess, welcoming Beowulf and his men to Heorot and offering them mead. Her character highlights themes of loyalty, kinship, and the responsibilities of women in a warrior society.