Your crest

The blazonry of the cavaliers & marchesses father is rumored(and likely) to be related to,
the top shaped like a chevron(a chevron represents a roof, thus symbolizing protection, but aside that a roof is perfect to represent the safety and sacrality of a household).
Atop that, in the center, the blazonry mother-side grandmother still had(recursion), bordered with acanthus
that divides it from the main blazonry. It would have an oval shape, since it's one for damsels.
We thus have paternal and maternal sides.
Acanthus leaves have been the "memetic" ornaments of architecture, sculpture and other visual artistry
for centuries, apparently since a guy who saw acanthus sprouting under a basket decided to
design a column's capitol after it. In heraldry acanthus represents contemplation for the arts,
and is overall attributed to aesthetics, taste, pomp and mincing ways.
The smol damsel blazonry lies centered, because of symmetry stuff I can't explain but also
because it sorta reminisces a heart.
The two blazonries(not the acanthus) would feature diapering. Diapering is a decorative
overlay layer that, with very few exceptions, isn't considered part of the blazonry and serves
purely ornamental purposes, however I still think it relates to taste and blah-blah-blah.
From below the main blazon sprout MORE ACANTHUS LEAVES!

Alongside those leaves, we have hyacinths. Now, distant relative called Giacinto aside,
the hyacinth in heraldry represents sports, games and playfulness, thus it's
something you could attribute to sportsmanship, electronic gaming and, again :

Supporting the blazonry I think I'd put the pelican on one side and on the other
the crane/stork(they look identical in heraldry, people of the time might also have mistakenly thought they were the same birb).
The pelican symbolizes sacrifice and parental duty, the crane/stork parental bonds.
Yep, pretty much family stuff.
Not gonna tell you what the blazonries look like, that's maximum confidentiality(*blows a raspberry*),
I can only tell you they don't portray landscapes, don't feature detailed objects, and they follow
the rule of "dyes and metals must flank each other", aka no dye close to an other dye or metallic
colour close to an other metallic colour (but again, nobody enforces this rule and you'll find quite a
few examples of dyes with dyes and metals with metals. Not sure why this silly rule is a thing, but it exists).