en_tn/mrk/12/20.md

There were seven brothers

The Sadducees tell Jesus a story because they want to ask him a question about it to test him. The story is not about things that really happened. Alternate translation: "Suppose there were seven brothers"

the first

the first brother

the first took a wife

"the first brother married a woman." Here marrying a woman is spoken of as "taking" her.

seed

This is a metaphor for children. In this context it refers to a son. See how you translated this in Mark 12:19. (See: rc://en/ta/man/jit/figs-metaphor)