Isabel was born about 1716.
Citing this Record "México matrimonios, 1570-1950," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JC8C-XVX : 10 February 2018), Joseph Gerardo Brabo and Ysabel Urtado De Mendosa, 22 Feb 1734; citing La Barca,Jalisco,Mexico, reference ; FHL microfilm 281,070.
"México, Jalisco, registros parroquiales, 1590-1979," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:939L-Q6S8-F2?cc=1874591&wc=3JF3-L29%3A172049901%2C172049902%2C175761601 : 28 June 2014), La Barca > San Juan Bosco > Matrimonios 1681-1768 > image 397 of 575; parroquias Católicas, Jalisco (Catholic Church parishes, Jalisco).
Citing this Record "México bautismos, 1560-1950," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NK7P-TXZ : 10 February 2018), Ysabel Suares in entry for Juan Bicente Brabo Suares, 12 Dec 1734; citing LA BARCA,JALISCO,MEXICO, reference ; FHL microfilm 281,016.
"México, Jalisco, registros parroquiales, 1590-1979," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:939L-QVZD-V?cc=1874591&wc=3JF4-4W5%3A172049901%2C172049902%2C172071001 : 28 June 2014), La Barca > San Juan Bosco > Bautismos de hijos legítimos 1733-1769 > image 29 of 624; parroquias Católicas, Jalisco (Catholic Church parishes, Jalisco).
H > Hurtado de Mendoza > Isabel Hurtado de Mendoza