Parallel
Mark 12:20
Nestle 1904 Greek New Testament · Berean Standard Bible
ἑπτὰ ἀδελφοὶ ἦσαν καὶ ὁ πρῶτος ἔλαβεν γυναῖκα καὶ ἀποθνῄσκων οὐκ ἀφῆκεν σπέρμα
Now there were seven brothers. The first one married and died, leaving no children.