John and Allyson Tietgens of San Jose welcomed the arrival of their son, Jaxon David Tietgens, on Dec.19, 2012.

The newborn weighed seven pounds, two ounces upon arrival at Kaiser Hospital in Santa Clara.

The mother is the former Allyson Zajac.

Welcoming home his new baby brother was big brother Jacoby.

David and Deborah Zajac of San Jose are the maternal grandparents.

James and Marilyn (Biaggi) Tietgens are the paternal grandparents.