Wikia

Tessie
Biographical information
Blood status	Pure-blood
Physical information
Species	Human
Gender	Female
Family information
Family members	Possible mother ; Mr. Prewett (brother or brother-in-law) ; Mrs. Prewett (sister or sister-in-law) ; Ignatius Prewett (brother or sister-in-law's brother) ; Lucretia Black (sister-in-law or sister-in-law's sister-in-law) ; Muriel (possible sister) ; Arthur Weasley (nephew or niece's husband) ; Arthur's brothers (nephew's or niece's brothers-in-law) ; Molly Weasley (niece or nephew's wife) ; Fabian Prewett (nephew or nephew's brother-in-law) † ; Gideon Prewett (nephew or nephew's brother-in-law) † ; Bilius (possible nephew) † ; Lancelot (possible cousin) ; Weasley childrens (great-nephews) ;
Affiliation
Loyalty	Weasley family ; Prewett family ;

"Traditional?! They're ancient! I look like my great-aunt Tessie! I smell like my great-aunt Tessie!..."

—Ron Weasley on his dress robes^[src]

Tessie was a great-aunt of the Weasley children. It is unknown if she was a Weasley, or if she was related through another family, such as the Prewetts. In December of 1994, Ron Weasley commented that his dress robes for the Yule Ball made him look and smell like her.^[1] She may have owned Shell Cottage before Bill Weasley and Fleur Delacour.

Appearances

Tessie

Biographical information
Blood status	Pure-blood
Physical information
Species	Human
Gender	Female
Family information
Family members	Possible mother Mr. Prewett (brother or brother-in-law) Mrs. Prewett (sister or sister-in-law) Ignatius Prewett (brother or sister-in-law's brother) Lucretia Black (sister-in-law or sister-in-law's sister-in-law) Muriel (possible sister) Arthur Weasley (nephew or niece's husband) Arthur's brothers (nephew's or niece's brothers-in-law) Molly Weasley (niece or nephew's wife) Fabian Prewett (nephew or nephew's brother-in-law) † Gideon Prewett (nephew or nephew's brother-in-law) † Bilius (possible nephew) † Lancelot (possible cousin) Weasley childrens (great-nephews)
Affiliation
Loyalty	Weasley family Prewett family