|Birthname||Montana Tessa Siebel Newsom|
|born on||18 September 2009 at 12:39 (= 12:39 PM )|
|Place||San Francisco, California, 37n47, 122w25|
|Timezone||PDT h7w (is daylight saving time)|
|Astrology data||26°01' 26°32 Asc. 04°45'|
American noted family member, the first child of Gavin Newsom (40th governor of California) and his wife film director Jennifer (nee Siebel).
- child->parent relationship with Newsom, Gavin (born 10 October 1967)
- sibling relationship with Newsom, Dutch (born 26 February 2016)
- sibling relationship with Newsom, Hunter (born 12 June 2011)
Tamara Baker quotes a news article in the online edition of the San Francisco Chronicle: "Montana Tessa Siebel Newsom, the first child for the mayor and his wife, Jennifer Siebel Newsom, was born at 12:39 p.m. Friday. She measured 20.5 inches long and weighed 7 pounds, 12 ounces."
- Family : Childhood : Advantaged
- Family : Childhood : Family noted