Can you help me with information about this paintings?

Bought in Stockholm, Sweden

Titel: Woman with child ? Oil on cloth

Size: 54 x 67 cm
Signature: R. Kenum? Kenin?

same but negative


Motive: Venice-Basilica San Marco & the Dodge Palace in the bg
Unknown Italian painter, oil on cloth (a professor?)
Size: 29x49 cm
Signature: can't read it

same but negative