Ekkehardt would have known his grandma at least in passing pre-Daybreak so he'd probably kind of vaguely drift past to check up on him now on then just based on that. Not sure if his family and Lalli's family had any other sort of contact though!

Hornet might have met Lalli on an Outlands trip as some kind of weird cryptid encounter honestly, if he went out there. passing by like ships in the night