Della Colonna Last Name: Meaning and Heraldic Roots
Della Colonna is best understood together with Colonna: both are Italian spellings of one family name.
The Della in front of the name is a particle that was often added to Colonna on registers. Spellings drifted because names were written down by ear in parish books, tax rolls and passenger lists.
Heraldry is personal: arms associated with the Colonna surname were borne by specific families, and sharing the name does not mean sharing the blazon. Research your Della Colonna family history with a full surname report and painted coat of arms.