sentences:  By 22 February 1493 the childless union ended, either by her repudiation or death.Between 29 September 1496 and 25 January 1497, Konrad III married thirdly with Anna (ca.1476 - 14/15 March 1522), a daughter of Mikolaj Radziwiłł "the Old", Voivod of Vilnius and the first Grand Chancellor of Lithuania.