On 16th July 1825 at La Coruña's parish of San Jorge, a child born on the 3rd of that month was Christened with the names Juan Carlos. His father was John Peters of Bristol; his mother, Mary Tellet of London. The infant's paternal grandparents were named as John and Jane Peters, which presumably reflects the grandmother's married name; but the maternal grandparents were named as Joseph Tellet and Mary Stillman. This baptism is a bit unusual in that what one usually sees in Spain at this period are foreign bachelors who settled here and married a Spanish wife; in this case, the Peters' seemed to have moved to Spain as a family, for whatever reason, and one wonders if their son Juan Carlos Peters stayed in Spain or eventually set off for England.
SOURCE: Diocesan Archive of Santiago de Compostela, Parish of San Jorge of La Coruña, Baptisms 1823-1832, P. 129 verso