Who married Борис Константинович?

Бори́с Константи́нович (ум. 1394) — князь Городецкий, третий сын Константина Васильевича, князь Суздальско-Нижегородский.

Agrypina or Agrafena (Russian: Агриппина, romanized: Agrippina; fl. 14th century) was a Lithuanian noblewoman from the Gediminid dynasty. She was a daughter of Grand Duke Algirdas and his first wife Maria of Vitebsk. She was a princess of Nizhny Novgorod-Suzdal from 1354 as the wife of Boris of Suzdal.