And Naomi had a kinsman of her husband's, a mighty man of wealth, of the family of Elimelech; and his name was Boaz.
All Commentaries on Ruth 2:1 Go To Ruth 2
Aquinas Study Bible
AD 2017
Booz: There were three Boozes successively, of which the first was the uncle, the second the son, and the third the nephew. The first was the son of Salmon, whom he fathered with Rahab, and the third was he who fathered Obed with Ruth. And this is the same one referred to in Matthew 1 where these three are conflated under one name, because Matthew wished to describe the genealogy of the Savior in three lots of fourteen ancestors. (Nicholas of Lyra Com Ruth)