Begotti is a pretty well known (here in Venice) glass painter. Somebody offered me some goblets decorated by him (or by his son?) last year. The goblets were not good enought (too heavy) and I didn't carry them, but the decor was very very good. There are very few people working in this way now.
I'm not surprise that you don't find infos on the web; those craftmen don't care about this kind of promotions and often they pass their life hidden in some furnace creating masterpieces. Begotti is just a decorator, but it is more or less the same for master glassmakers as Carlo Tosi "Caramea", real pieces of art glass history, but pratically unknown aout the small group of hardcore collectors.