The three-year-old son of Duke Eric, Magnus, was elected King in 1319 by the Stone of Mora in Uppland.
ðə θɹˈiːjˈɪɹˈoʊld sˈʌn ʌv dˈuːk ˈɛɹɪk, mˈæɡnəs, wʌz ᵻlˈɛktᵻd kˈɪŋ ɪn wˈʌn θˈaʊzənd θɹˈiːhˈʌndɹɪd nˈaɪntiːn baɪ ðə stˈoʊn ʌv mˈɔːɹə ɪn ˈʌplənd.