I do not know about all the branches we had in Venice, but I know at least about 2, mine and the one of Andrea, who married Veronica Cremona, suposedly parents to Pietro Cesare. Now I will try to copy the transcription of Andrea's branch. As far as mine is concerned, my ancestors were all public servants either as senior secretaries (Senate, Consiglio dei X, etc..) or ambassadors till my great-grandfather Francesco, who did nothing except spending all the family money! A subset of my branch gave a quite famous architect, Matteo Alberti (http://commons.wikimedia.org/wiki/File:Matteo_Alberti_architect.jpg) as his father Francesco, a well appreciated military engineer in 17th century. Members of our branch were also Francesco Paolo, the last ambassador of the Venetian Republic in Milan, or Girolamo, whose young whereabouts are studied in Natalie Rothman's Doctor Thesis and article ( http://www.utsc.utoronto.ca/~rothman/Rothman2009b.pdfhttp://www.utsc.utoronto.ca/~rothman/Rothman2009b.pdf, pag.16). In term of marriages, they mixed up with upperclass Venetian families, including at least 3 Dogal families, Priuli, Soranzo and Grimani (my great-grandmother, but were never again rich enough to make into the Senate or the top ruling roles). They lived most probably on fondamenta Alberti (http://www.flickr.com/photos/alessandraelle/3565746939/), (http://globitude.com/picture/8210/info), in front of Fondamenta Giraldini and San Barnaba, where most of my ancestors were baptized from 1400 till 1800. Finally to the Venetian branches (maybe even mine) belonged Domenico, (http://www.encyclopedia.com/topic/Domenico_Alberti.aspx).