Is Mateo Jane's real son in real life?

Is Mateo Jane's real son in real life?
His wife has just started nursing school. One daughter is soon to be walking and the other just found out that Mateo is officially her biological son.
Why did they replace Mateo in Jane the virgin?
When the promotional poster for the season was first released, it was revealed that the character of Mateo was recast with Elias Janssen due to previous child actor Joseph Sanders being too busy with school to commit to the role.
Who are the parents of Mateo on Jane the Virgin?
- Mateo was born on May 14th 2015 to Jane Villanueva and Rafael Solano and was the result of an accidental artificial insemination performed on Jane by Dr. Luisa Alver, Mateo's aunt. Mateo has a sweet side and big heart but is full of energy and can cause a lot of mayhem for the people around him.
How did Mateo Villanueva die on Jane the Virgin?
- He presumably died before Xiomara got pregnant. Mateo Villanueva is described as the love of Alba's life, and she is seen mourning the anniversary of his death on June 12, in a flashback. Mateo is described by the Villanuevas as a kindhearted, hardworking man, who put family first.
Who is playing Jane's son on Jane the Virgin?
- Jane's son, previously played by Joseph Sanders, will now be played by Elias Janssen. Janssen is featured prominently in the poster for the show's new season, and he looks ready to take on the challenge. But why did was Mateo's character recast on Jane The Virgin in the first place?
How old was Mateo when he met his great-grandfather?
- Mateo meets his other great-grandmother for the first time at 8 months old, and they spend some time together hanging out in Jane's room and taking a walk while she is visiting with the Villanuevas . Little Mateo meets his great-grandfather for the first time at 8 months old, when Manuel came to visit the Villanuevas for the first time.