Born on 12 September 1652 at Stuttgart, Frederick Charles was the second son of Eberhard III, Duke of Württemberg and Anna Catharina von Salm-Kyrburg.
bˈɔːɹn ˌɔn twˈɛlv sɛptˈɛmbɚ wˈʌn θˈaʊzənd sˈɪkshˈʌndɹɪd fˈɪfti tˈuː æt stˈʌtɡɑːɹt, fɹˈɛdɚɹˌɪk tʃˈɑːɹlz wʌzðə sˈɛkənd sˈʌn ʌv ˈɛbɚhˌɑːɹd ɹˌoʊmən θɹˈiː, dˈuːk ʌv wˌuːətˈɛmbɜːɡ ænd ˈænə kˌæθɑːɹɹˈiːnə vˈɑːn sˈælmkɚbˈɜːɡ.