Final answer:
Winky the house-elf served the Crouch family in the Harry Potter series.
Step-by-step explanation:
Winky the house-elf served the Crouch family. In the Harry Potter series, house-elves are magical creatures who are bound to serve a specific family. Winky was initially devoted to Bartemius Crouch Sr. and his family, until her dismissal in Harry Potter and the Goblet of Fire. Her departure from the Crouch family's service was emotionally difficult for her, as house-elves typically form strong attachments to their masters.