After Thomas Seymour began a flirtation with the 14-year-old Elizabeth, Kat first thought this amusing. However, this changed after he entered the girl's bedroom in the morning in his nightshirt and tried to tickle her while she was still in bed. Kat became concerned and advised Parr, who was later accused of taking part in holding down Elizabeth while Seymour slashed her gown "into a thousand pieces." There was a major incident in which Kat said that the Dowager Queen had caught Elizabeth in Seymour's arms, which caused both stepmother and governess to lecture the princess about the need to protect her reputation. Shortly afterwards, Elizabeth and her household moved to Hatfield House, but gossip already spread. After Parr died after childbirth on 5 September 1548,