This glacial lake, in the extreme north-west of Slovenia, is situated northwest of Ljubljana and is 475 metres above sea level at the foot of the Julian Alps. Josip's father was Urban Plemelj, a carpenter in the village who farmed a small piece of land, while his mother was Marija Mrak. Urban died was Josip was only one year old and it was left to Marija to bring up her family in very difficult circumstances.
Ito gleysyal lake, sa kalabisan north-kanluran ng Slovenia, ay nakatayo sa hilagang-kanluran ng Ljubljana at ay 475 metro sa itaas ng dagat at ang mga paa ng Julian Alps. Josip ng ama ay Urban Plemelj, isang karpintero sa baranggay na farmed ng isang maliit na piraso ng lupa, habang ang kanyang ina ay Marija Mrak. Urban namatay ay Josip ay lamang ng isang taon gulang na at ito ay kaliwa upang Marija na magdala up ng kanyang pamilya sa mahirap na pangyayari.