Sen. Brian E. Frosh (D-Montgomery), left, is running for Maryland attorney general. (AP Photo/Patrick Semansky)

Maryland state Sen. Brian E. Frosh, who has launched his 2014 campaign for Maryland attorney general, is set to pick up endorsements Tuesday from two former occupants of the office.

J. Joseph Curran Jr. (D) and Stephen H. Sachs (D) will endorse Frosh (D-Montgomery) at a late-morning event in Baltimore, according to Frosh’s campaign. Curran, who is the father-in-law of Gov. Martin O’Malley (D), served in the attorney general post for two decades, from 1987 to 2007. Sachs was his predecessor, serving from 1979 to 1987.

The endorsements are the latest sign of Democratic establishment support for Frosh in what is shaping up as a competitive primary in the race to succeed Attorney General Douglas F. Gansler (D), who is running for governor. Last fall, when Frosh announced an exploratory bid, many prominent Maryland Democrats were publicly supportive of the effort.

Other Democrats eyeing the job include Del. Jon S. Cardin (Baltimore County), Del. C. William Frick (Montgomery) and Del. Aisha N. Braveboy (Prince George’s).

When Cardin kicked off his campaign last month, he released a video featuring a testimonial for his candidacy from another prominent Democrat: U.S. Sen. Benjamin L. Cardin (Md.), the delegate’s uncle.

No Republicans have announced a bid for attorney general.