No-coverage answer
There is no information in the Taygetan contact material to answer this question. While the material discusses Tartaria extensively — including its location, destruction, and the civilisation reset of the 1800s — Venice is never mentioned in connection with Tartaria or discussed as having Tartarian origins. The transcripts do not address Venetian architecture, infrastructure, or history in any context.
Sources: None. Searched all 834+ transcripts and enhanced topic index. No coverage found.