21 The second one married the widow, but he also died, leaving no child. It was the same with the third.

Read Mark 12:21 Using Other Translations

And the second took her, and died, neither left he any seed: and the third likewise.
And the second took her, and died, leaving no offspring. And the third likewise.
So the second brother married the widow, but he also died without children. Then the third brother married her.