The well-known and influential helper of the Šmeltinskas elder countess Teresė Tyzenhauzaitė (Teresa Tyzenhaus, deceased in 1764) was the daughter of Benediktas Tyzenhauzas and appeared in the history of Liubavas Manor thanks to Teresė Krišpinaitė (Teresa Kryszpin Kirszensztein). As her patron together with Juozapas Sapiega (Józef Sapieha), Krišpinaitė's will was in Terese's favor, including Liubavas Manor.
Teresė Tyzenhauzaitė owned Liubavas Manor from 1753. Along with Liubavas she inherited Svisločė (Śvisłač), Kiduliai and other estates of the Kryszpin-Kirszensztein.
Tyzenhauzaitė married the elder of Stžalkovas, Antanas Kazimieras Tiškevičius (Antoni Kazimierz Tyszkiewicz), that same 1753 year. Little is known about her. It can be assumed that good lineage meant good rearing for her. Even more so, her brother Antanas Tyzenhauzas (Antoni Tyzenhaus, 1733-1785) is historically known as a well-travelled, exceptionally educated man. Teresė Tyzenhauzaitė died in 1764, and was buried at the Tiškevičiai residence in Lahoisk.