Katia Mann
wife of the German writer Thomas Mann, 1883-1980
"Katia Mann (born Katharina Hedwig Pringsheim) was the youngest child and only daughter (among four sons) of the German Jewish mathematician and artist Alfred Pringsheim and his wife and former actress Hedwig Pringsheim. She married the writer Thomas Mann, with whom she had six children. Katia was one of the first patients to be admitted to the ""Wald Sanatorium"" in Davos, Switzerland in 1911. Thomas Mann's visits to her there inspired his novel ""The Magic Mountain"". He made a sort of ""portrait"" of her in his novel ""Royal Highness"". She was not just the good spirit of the family, but the connection point that kept them all together. She taught her children and was her husband's manager."
Source: Wikipedia