|"Francine's grandfather" is not an official name.|
|This article is about Francine's paternal grandfather. You may be looking for Francine's maternal grandfather.|
|Hair color||White (s3, APC)|
Brown (as an adult, APC)
|Complexion||Peach (s3, s11)|
|Residence||Thora's childhood house, Elwood City|
|Family||Vingo Frensky (grandfather) |
Francine's cousin (possibly granddaughter)
|Cartoon debut||"Background Blues"|
Francine's grandfather is the father of Oliver Frensky, and the grandfather of Catherine and Francine. He appears in the episode "Background Blues" helping Francine learn about the Frenskys. He once owned a restaurant called Hamburger Castle. He is seen again in "Francine's Pilfered Paper."
He also appears in Arthur's Perfect Christmas with the rest of the Frensky family. In this appearance, he is recolored to have brown hair.