Who is Katherine Schwarzenegger, Chris Pratt's fiancee?

Katherine Schwarzenegger, daughter of "Terminator" actor Arnold Schwarzenegger, is apparently engaged to  Chirs Prattt after she posted a picture of the two of them together on her Instagram.

"My sweet love. Wouldn’t want to live this life with anyone but you," the caption read followed by a ring icon.

According to reports, Katherine S is not an actress like her father and brother, but she is said to have authored three books.

USA Today reports that the 29-old is the eldest child of Arnold S and former TV correspondent Maria Shriver while Pratt, 39,  needs no introduction after his roles in "Guardian of the Galaxy" and Jurassic World roles .

 He has six-year old son with his ex-wife actress Anna Faris .

Kathrien S introduces herself on Instagram as "‪Author,blogger,lover & addict of all things lifestyle".

Thousands of people have liked the couple's picture on the photosharing app with fans  wishing  them everything best in life.