Gyda Svendsdatter Daughter of Sweyn I of Denmark (1000–1100) Parents Gunhild of Wenden Sweyn I of Denmark Children Haakon Ericsson Siblings Harald II of Denmark Cnut the Great Estrid Svendsdatter daughter Sveynsdottir Świętosława Gunhilda Sveynsdottir Thyra Sveynsdottir Gunhilda Partners Eric Haakonsson