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