Duck Dynasty’s Uncle Si Robertson has become Grandpa Si.

Si Robertson has a new grandson – Wyatt – from his son Scott.

Si Robertson welcomed his new grandson Wyatt from son Scott

Wyatt is Scott Robertson and his wife Marsha’s fourth son as they have other three boys together: Ethan and twins Logan and Connor.

Like his father, Scott Merritt Robertson, 35, is enrolled in the US Army and had several deployments to Iraq.

Marsha Robertson is a certified independent consultant for Scentsy – a company promoting safe, wickless alternative to scented candles.

Scott Robertson lives with his family in Williamsburg, Virginia.