Jacob was the father of Joseph, the husband of Mary. Of her was born Jesus who is called the Christ. (Mt 1:16, 18-21, 24a)
https://bible.usccb.org/bible/readings/031924.cfm
At times Saint Joseph is often overlooked or only receives an “honorable mention” in the gospel story itself, but what an important role he has in the Holy Family of Nazareth. The church is grateful that Saint Joseph’s name has finally been added to the main Eucharistic prayers following the name of the Blessed Virgin Mary, a task that began with Pope Saint John XXIII in 1962 and was completed by Pope Francis in 2013.