"Spaens Heydinnetie" is a play written by Jacob Cats in the 17th century. The story is about a Spanish woman who is living in the Netherlands and is being courted by a Dutch man. However, the woman's loyalty to her homeland clashes with her developing feelings for the Dutchman, leading to a dramatic conflict between love and patriotism. The play examines themes of identity, loyalty, and cultural differences. "Spaens Heydinnetie" was first performed in 1617 and remains a classic of Dutch literature.