CAITLYN JENNER is now a grandparent seven times over.

Burt Jenner, the “I Am Cait” star’s oldest son, welcomed his second child, a boy named William, last week with girlfriend Valerie Pitalo, the family announced on Instagram.

The new grandparent recently paid the tot a visit and shared a sweet pair of photos to Instagram on Sunday, showing the newborn first in her arms and then sporting a tiny mohawk.

The moniker might be a nod to Jenner — who publicly came out as transgender in 2015 — as her birth name was William Bruce Jenner.

Burt, 40, celebrated the birth of his baby with an adorable Instagram video featuring his older son, 2-year-old Bodhi, cuddling his new brother and declaring him “nice.”

As for the rest of the brood, Jenner is also grandparent to Marino’s three children, Brandon’s 3-year-old daughter Eva James and Kylie’s 1-year-old daughter Stormi.

(SD-Agencies)