Hartmann, Count of Werdenberg-Sargans (d.1355) German count (1350–1354) Parents Rudolph, Count of Werdenberg-Sargans (d.1323) Children Rudolph, Count of Werdenberg-Vaduz (d.1367) Hartmann, Count of Werdenberg-Vaduz Henry, Count of Werdenberg-Vaduz (d.1397) Siblings Rudolph, Count of Werdenberg-Sargans (d. 1361) Margaret of Werdenberg-Sargans Henry, Count of Werdenberg-Alpeck (d.1334) Partners Agnes of Montfort-Feldkirch, Countess of Werdenberg-Sargans